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Finally some good news for our Iranian users.

A couple of weeks ago Telegram stopped working in Iran, so I assumed we had been blocked there. However, service has since returned to normal, and the Iranian Ministry of Information and Communication declared they were not going to block Telegram.

The interruption of service, they say, was due to the disruption of cables connecting Iran with the rest of the world (Suez Canal, Mandeb Strait + Iran-Turkey cables), and the poor connectivity affected most western services in Iran – not just Telegram.

Moreover, the government denied that they required any kind of spying tools from Telegram, saying that the demand I received was fake and not authorized by any higher authorities.

I’d like to believe that this is true – it would mean that the Iranian people will continue to be able to use what I maintain is the best messaging service on the market. And since our system administrators confirm that the Iranian government’s report of cable disruption is probable, my earlier claim about Telegram getting blocked may have been inaccurate (or at least premature).

In that case, sorry for the false alarm, everyone. It’s easy to misinterpret the situation in markets that have a history of internet censorship – you might have heard that Facebook and Twitter have been blocked in Iran for a few years. However, this doesn’t mean that Telegram can't be blocked there in the future.

Iranian authorities made it clear that they would block Telegram if it contained publicly available porn, i.e. porn bots and porn channels. If this is the only matter that poses a concern, there will hardly be any problem, since we already block most porn bots and channels anyway due to App Store restrictions.

Anyway, the bottom line: we’re good in Iran. For now. And let’s hope for the best 🌟

11000000 04.11.2015 16:35:05

Happy Winter Solstice! May your wishes come true ✨🌟

7976000 21.12.2017 20:37:09

🎉 Amazing news – Apple has just successfully reviewed our latest update for Telegram iOS, and we were able to ship a new version with long awaited fixes and improvements to the AppStore.

Thank you, Apple! 🍏

7445000 01.06.2018 20:50:09

2018 was a great year for Telegram, but 2019 is going to be by far the most important one in our company's history.

In 2018, more and more people discovered Telegram and switched to it from services run by ad-selling IT monopolies.

As a result, Telegram became one of the few messaging apps that are enjoying significant growth globally.

Building on the success of the last year, this year we are going to implement many long-awaited product changes you have been asking for.

2019 will be the time when feature-related wishes of our users come true.

6392000 17.01.2019 06:56:04

Unfortunately, some Telegram features, such as stickers, don’t work correctly under iOS 11.4 that was just released – even though we fixed this issue weeks ago.

Apple has been preventing Telegram from updating its iOS apps globally ever since the Russian authorities ordered Apple to remove Telegram from the App Store. Russia banned Telegram on its territory in April because we refused to provide decryption keys for all our users’ communications to Russia’s security agencies. We believe we did the only possible thing, preserving the right of our users to privacy in a troubled country.

Unfortunately, Apple didn’t side with us. While Russia makes up only 7% of Telegram’s userbase, Apple is restricting updates for all Telegram users around the world since mid-April. As a result, we’ve also been unable to fully comply with GDPR for our EU-users by the deadline of May 25, 2018. We are continuing our efforts to resolve the situation and will keep you updated.

Sorry for the inconvenience and thank you for your patience.

6312000 31.05.2018 09:22:21

For the last 24 hours Telegram has been under a ban by internet providers in Russia. The reason is our refusal to provide encryption keys to Russian security agencies. For us, this was an easy decision. We promised our users 100% privacy and would rather cease to exist than violate this promise.

Despite the ban, we haven’t seen a significant drop in user engagement so far, since Russians tend to bypass the ban with VPNs and proxies. We also have been relying on third-party cloud services to remain partly available for our users there.

Thank you for your support and loyalty, Russian users of Telegram. Thank you, Apple, Google, Amazon, Microsoft – for not taking part in political censorship.

Russia accounts for ~7% of the Telegram user base, and even if we lose that entire market, Telegram’s organic growth in other regions will compensate for this loss within a couple of months. However, it is important for me personally to make sure we do everything we can for our Russian users.

To support internet freedoms in Russia and elsewhere I started giving out bitcoin grants to individuals and companies who run socks5 proxies and VPN. I am happy to donate millions of dollars this year to this cause, and hope that other people will follow. I called this Digital Resistance – a decentralized movement standing for digital freedoms and progress globally.

5856000 17.04.2018 13:32:59

As you may have heard, we have recently launched encrypted voice calls for Telegram. They are super-easy to use and improve themselves over time using machine learning.

Personally, I rarely make voice calls. When I lived in Russia, I developed the habit of NEVER speaking over the phone, as every conversation was being recorded by corrupt law enforcement agencies. This habit stayed with me even after I left Russia a few years ago. I don't expect agencies in other countries to have more respect for privacy than their Russian counterparts. In my opinion, they're the same everywhere, some are just better at marketing.

My phone habits may change now that I use secure calls via Telegram to communicate with my team and family members. Unfortunately, not everyone in the world will be able to enjoy the same.

In countries like Saudi Arabia, Telegram traffic is throttled in order to discourage usage. In others, like China and Oman, it's blocked completely. In Iran, where Telegram has some 40 million active users, Telegram voice calls have been completely blocked by the country's internet providers and mobile operators following an order from the judiciary (more about this here – http://telegra.ph/Telegram-Calls-in-Iran-NEWS).

Telegram has historically had problems with regulators in some parts of the world because, unlike other services, we consistently defended our users' privacy and have never made any deals with governments. In three and a half years of existence to date, Telegram disclosed exactly zero bytes of users' data to any third-party.

Services like WhatsApp, on the other hand, are not blocked in China, Saudi Arabia, Iran, or other countries with a history of censorship. This is the case because WhatsApp (and its parent company Facebook) are eager to trade user trust for an increased market share. The claim that “WhatsApp and third parties can’t read or listen to your WhatsApp messages and calls” – is completely false. WhatsApp actually can read and listen in to your calls and messages, as they are able to invisibly change the encryption keys for 99.99% of their users (more about this backdoor-disguised-as-a-feature here – http://telegra.ph/whatsapp-backdoor-01-16). So much for "End-to-End Encryption".

Moreover, third parties like Google or Apple have direct access to most of WhatsApp's users' chat history. This is because WhatsApp tricked the majority of users into allowing third party backups. And the sharing doesn't stop with just these third parties. Apple and Google in turn have to deal with data requests from all the countries they have business in, and so the data flows.

By claiming that they are secure, our competitors may be involved in the single largest case of consumer fraud in human history.

By comparison, Telegram relies on end-to-end encryption assisted by a built-in encrypted and distributed cloud for messages and media. The relevant decryption keys are split into parts and are spread across different jurisdictions. This structure makes your cloud data a hundred times more protected and secure than when it is stored by Google, Facebook, or Apple.

No wonder governments and regulators are unhappy with Telegram. Well, let them block us as much as they want. We won't change our principles or betray our users. I know it’s not great to have Telegram (or parts of it) restricted in your country. But sometimes it’s better to stop using a communication service entirely than to keep using it with misplaced trust in its security.

It's why I avoided voice calls for years, in Russia and beyond. It's also why I'm coming back to them now, on Telegram.

5846000 18.04.2017 19:13:29

Happy New Year, everyone! 🎉
I hope you enjoyed the Telegram product updates this December. Stay tuned – we are going to make 3 big announcements in January.

On a less joyful note, Iranian authorities started blocking Telegram in Iran today after we publicly refused to shut down channels of peaceful Iranian protesters, such as @sedaiemardom.

We are proud that Telegram is used by thousands of massive opposition channels all over the world. We consider freedom of speech an undeniable human right, and would rather get blocked in a country by its authorities than limit peaceful expression of alternative opinions.

When it comes to freedom of speech, Telegram is as unrestricted as a mobile app can get. In 2015, after Apple and Google reached out to us in the aftermath of the Paris attacks, we added the simplest Terms of Service theoretically possible in an app: no calls for violence, no porn and no copyright infringement on public broadcast channels.

Since then, Telegram has been blocking hundreds of violent public channels daily (including those reported in @isiswatch), making sure our rules are applied equally and fairly to all players, regardless of their size and political affiliation.

Yesterday we had to suspend @amadnews, a public channel that started calling its subscribers to use Molotov cocktails and firearms against police. The admins of the channel reached out to us after the fact, apologizing for breaking our rules and pledging not to promote violence in the future. As a result, they have been able to reassemble most of their subscribers (800,000) in a new peaceful channel, which we welcomed.

Obviously, our neutrality and refusal to take sides in such conflicts can create powerful enemies. Iranian officials have filed criminal charges against me back in September for letting Telegram spread “uncensored news” and “extremist propaganda”. Today they imposed a block on Telegram – not clear whether permanent or temporary.

And yet, doing the right thing is more important than trying to avoid having enemies. We’re extremely lucky to have been able to consistently apply our principles in 2017. We will continue doing it in 2018 – and beyond.

5437000 31.12.2017 14:50:36

5382000 14.04.2016 21:34:18

You already know Telegram has your back when it comes to privacy. Another human right we feel passionately about is the freedom of speech. In some countries Telegram is the only popular platform for independent sources of information. Take Iran for example, where the BBC is blocked, but its @bbcpersian channel has been active for years and attracted almost a million followers. There are thousands of large Telegram channels that are critical of their governments.

Telegram has never yielded to pressure from officials who wanted us to perform political censorship. Freedom of speech is one of the values we’ve been defending for the last 11 years, first in Russia, and then globally.

Of course, there are rules that admins of Telegram channels should respect, for example, Telegram ToS prohibit publicly promoting violence in any form. This is why this October alone we have blocked over 8,500 channels related to terrorism (more stats in @isiswatch).

Another recent example of a line one shouldn’t cross is an Iranian channel that started to urge its members to throw stones into the windows of public buildings and vehicles (schools, temples, buses) and film it. We got in touch with the channel admins and asked them to stop this vandalism contest; not only did they ignore us, but launched another creepy competition urging their 100K+ users to burn mosques by throwing Molotov cocktails into them and film it. As a result, we were left with no other options but to block their channel.

For us, the line is pretty straightforward. Criticizing local authorities, challenging the status quo and engaging in political debate are OK. Meanwhile, promoting violence and calling for actions that can harm innocent people are not OK. This is a rule of thumb we’re always applying when moderating public channels.

4967000 29.10.2017 12:15:59

The power that local governments have over IT corporations is based on money. At any given moment, a government can crash their stocks by threatening to block revenue streams from its markets and thus force these companies to do strange things (remember how last year Apple moved iCloud servers to China).

At Telegram, we have the luxury of not caring about revenue streams or ad sales. Privacy is not for sale, and human rights should not be compromised out of fear or greed.

4543000 13.04.2018 11:39:37

Some media reported on a “massive” hacker attack on Telegram in Iran. Here's what really happened:

https://telegram.org/blog/15million-reuters

4489000 02.08.2016 20:25:01

There’s a weird rumor being spread in Iran about Telegram moving servers there. The idea of a privacy-oriented messaging app like Telegram moving its servers to a country with a history of Internet censorship is absurd and is hardly worth commenting on. However, it’s interesting to try to understand why such rumors appear in the first place. I can think of two reasons for that.

1. First, countries such as Iran or Russia usually try to pass laws ordering Internet companies to store private data on their territory. Sometimes officials in those countries make loud claims that turn out to be false (“Apple agreed to host private data of their users in our country”). It’s pretty obvious that Telegram can’t comply with any such demands due to our strict Privacy Policy. We won’t be able to put the privacy of our users at risk, even if rejecting such demands means getting blocked in some countries. We’d rather lose a big market (like we did in China) than compromise a single byte of private data of our users.

2. Second, some politicians and journalists discussing “servers” of a company in a country are confused about the terms and what they actually mean by “servers”. Along with a company’s servers that store private data in safe places, there also are internet providers that deliver its encrypted traffic to users, and third party caching nodes (CDNs) that make sure popular public content doesn’t go twice around the globe every time to reach its users. If Telegram servers store data, these third parties merely provide connectivity between Telegram servers and its users.

It seems that politicians / journalists sometimes refer to an internet traffic provider or a CDN provider that delivers or caches encrypted data of Telegram as “Telegram” or “Telegram servers“, thus misleading the public. There’s a world of difference between them: Telegram servers store private data and will never “travel” to countries with internet censorship, while internet providers and CDNs operate all over the world and have no access to private data of Telegram (and other secure apps).

All popular apps have to work with ISPs and CDNs in order to make sure users can get their traffic in a fast and reliable way, but unlike some of them, we at Telegram are always 100% transparent about how we encrypt and store data. That's why I will soon share more details about how exactly Telegram plans to work with third parties such as CDN providers to guarantee speed and security for our users all around the globe.

However, while we keep researching ways to improve connectivity and speed for our users globally, there’s one thing we will never do: we will never change the location of our servers or change our Privacy Policy due to restricting laws or threats from local officials. The only party Telegram can be held responsible to is our users, and only our users can dictate us their wishes and demands.

4487000 23.07.2017 01:15:40

A Bloomberg correspondent spotted me in Dubai and asked a few questions re Telegram and Bitcoin https://www.bloomberg.com/news/articles/2017-12-12/cryptic-russian-crusader-says-his-5-billion-app-can-t-be-bought

4268000 12.12.2017 14:59:58

For 7 days Russia has been trying to ban Telegram on its territory – with no luck so far. I’m thrilled we were able to survive under the most aggressive attempt of internet censorship in Russian history with almost 18 million IP addresses blocked.

If you live in Russia and support free internet, fly a paper plane from your window at 7 PM local time today. Please collect the airplanes in your neighborhood an hour later – remember, today is Earth Day.

My thanks to all the members of the #DigitalResistance movement. Keep up your great work setting up socks5-proxies and VPNs and spreading them among your Russian friends and relatives. They will be needed as the country descends into an era of full-scale internet censorship.

4255000 22.04.2018 14:18:51

Since some journalists don’t read my Telegram channel (a shame!), I made a Telegraph story about rumors on Telegram moving servers to weird places. It repeats some of the stuff from the last two posts from here, but could be useful as a summary of all our CDN-related posts. Spread the word!

http://telegra.ph/On-Rumors-About-Telegram-Servers-in-Weird-Places-07-30

4212000 30.07.2017 12:25:52

In other – more personal – news, I’ve turned 33 today.

Earlier I shared some info about how I stay healthy and productive. In short, there are 7 things I never do:

1) Alcohol
2) Meat (fish is OK though)
3) Any kinds of pills and meds (unless I’m at a dentist’s)
4) Nicotine and other addictive drugs.
5) Coffee, black and green tea, energy drinks (I drink herbal teas instead).
6) Fast food, sugar, carbonated soft drinks.
7) TV and its alternatives.

At certain points in life, I realized these things decrease productivity and clarity of thought. So I’ve been living without them for many years now and in general have been feeling great and healthy.

Disclaimer: I do not recommend folks with permanent health issues to stop taking medication. While I’m happy with my habits and lifestyle, I’ve no idea whether the same would work for you. I guess it should, provided you’re young and healthy. But if you’re young and healthy, there are good chances that having fun is more important for you than increasing your productivity, so you may safely ignore these tips. However, if you enjoy building stuff more than consuming it, you might benefit from abstaining from these 7 items above.

4087000 10.10.2017 20:58:06

▶️ Our two cents:

Well, this is not a real vulnerability on Telegram Desktop, no one can remotely take control of your computer or Telegram unless you open a malicius file.

This kind of vulnerability is based on social engineering.

In fact, it was a .js file hidden on a a .png file, this happened thanks to RTL characters.

Windows users must click on the Run dialog in order to install the malware.

So don't worry, unless you opened a malicius file, you have always been safe.

ℹ️ @geeksChannel

3922000 13.02.2018 14:41:51

Trusting a US-based company for secure communication was naive before today. But starting today, it is pure madness.

http://boingboing.net/2016/11/09/a-madman-has-been-given-the-ke.html

3859000 09.11.2016 16:34:36

Every service growing too fast is bound to experience growing pains; unfortunately, Telegram is no exception, although we strive to be one.

Many of our European users noticed connection issues earlier today. Those were caused by planned maintenance by our data center provider, which unfortunately lead to unplanned downtime. Thanks to Telegram’s distributed infrastructure, Americas and East Asia were not affected by the issues.

We sincerely apologize for the inconveniences this might have caused – we know tens of millions of Europeans rely on Telegram for communication with their colleagues and loved ones.

To make sure such disruptions don’t happen again, we have established a more direct and real-time communication between our engineers and the data center electricians, and, more importantly, started upgrading our power-related equipment to add even more redundancy.

Thank you for your support and patience during this time.

3765000 29.03.2018 12:48:12

Why Charges Against Us in Iran And Russia Don’t Matter

Some users ask me how the charges in Iran and Russia will affect Telegram and me personally. The simple answer to this is: they won’t.

It’s easy for me not to travel to Iran – while the country has a rich history and sounds like a fun place, I have no connections with it and can live with that travel ban. It’s a bit more noticeable in case of Russia since I am an ethnic Russian (although with a St. Kitts passport), and my parents live there. Not being able to occasionally drop by is not great, but a small price to pay considering the matters at stake.

Luckily, we don’t have any legal presence in any of these countries. The last remaining link between Telegram and Russia was cut in July, when we terminated our contract with “Telegraf” – a Saint-Petersburg-based company to which we outsourced fighting spam coming from (surprise) Russia and Iran.

“Telegraf” used to play a larger role in the early days of Telegram when I was living in Russia, losing its importance after I left in 2014 with our core team.

Following the events this June when the Russian authorities threatened to block Telegram, “Telegraf” lost its outsourcing contract from Telegram Messenger, let go all of its employees and changed its owner. By September when the Russian authorities started sending warnings to our London office, they had nobody to target in their jurisdiction, not even Russian spam moderators.

This story highlights something local regulators often tend to ignore: it’s 2017, and the world is open and connected. If you pass archaic laws that limit freedoms, all you’ll end up doing is killing your own economy. In the last few years, Google, Oracle and Microsoft (Skype) shut down their development offices in Russia, and many smaller companies followed suit.

While the state of affairs in Iran doesn't look much brighter than in Russia, things seem to be going in the right direction there compared with the situation a few years ago. I’m not an expert on Iran, but one thing about the country is clear to me: despite the continuing debate among the Iranian politicians on how to regulate the Internet, Iran is not blocking Telegram, and for the last few years 40 millions Iranians have been able to securely communicate and to get news from independent sources through Telegram channels. Instagram and WhatsApp are also accessible there.

For any European this would sound like the norm, but unfortunately it’s not always like this in the world. The Chinese and the North Koreans, for example, are far less lucky when it comes to such freedoms, and Saudi Arabia had been throttling Telegram’s traffic until recently. The situation in Iran itself used to be very different: almost all major internet services were blocked in the country several years ago (some of them still are).

Don’t get me wrong: there are probably many things that Iran can change for the better (a more IT-friendly prosecutor of Tehran, perhaps?), but overall it seems that the country is moving in the right direction by becoming more open and market-driven.

I hope that one day Iran and Russia get to a point when we (and other IT companies) will be able to set up offices there. Until then, we’ll continue providing secure messaging to users in these markets from places that respect freedom.

We don't care if specific countries press charges against us for defending the privacy of our users. We are always ready to cut all our personal and business links to such places so that they don't have any leverage on us. They can try to block us on their territory, but, as I've shown in my previous post about China, even this won't always help them. Eventually freedom and privacy will prevail, and those who would like to get back to the 1930s will find themselves on the wrong side of history.

3508000 28.09.2017 18:42:22

Thank you for the support, Russia! This could become a Sunday tradition. Please don’t forget to clean up ✈️👍🏽

3451000 22.04.2018 17:12:48

Why I Can't Visit Iran and Russia

Today, Iran joined the list of countries I can't travel to – Tehran's prosecutor just filed criminal charges against me there. More than 40 million people use Telegram in Iran and we've never blocked a single political channel and gave up exactly zero bytes of data to the government (in Iran and elsewhere).

Russia, where we have about 10 million users, is also rushing to join Iran in filing charges against the Telegram management. They seem to be unhappy because we won't comply with the unconstitutional "Yarovaya laws" and won't give them the encryption keys they wanted. I always publish such demands online, and did the same today with the documents that the FSB has been sending to our London office in the past weeks.

Because of my parents, not being able to visit Russia on occasion is more painful for me than never going to Iran. But Mom and Dad are not too old to travel and the globe is still pretty big.

3437000 26.09.2017 22:21:47

An epic Telegram update is coming today. Along with some cool new features such as Live Locations and the new Music Player, Telegram 4.4's UI supports many more languages that you’ve been asking us to add, namely French (I’m still excited that “stickers” are in fact “autocollants”), Indonesian, Malay, Russian, Ukrainian and – very soon – Persian.

As someone who majored in linguistics, I know there are thousands of small details that are easy to miss when you translate things into other languages.

That’s why we’re launching the Telegram Localization Platform today – it allows our users to suggest and vote for translations of phrases found in the Telegram UI. Unlike other apps, we can instantly push fixes for the localized versions of Telegram from the server-side, without forcing our users to update the whole app for a few changes in wording.

So if you’re unhappy about how a specific word in the Telegram UI was translated into your language, go ahead and suggest an alternative at translations.telegram.org. If the new version you suggested outvotes the currently applied one (and a Telegram admin approves it), your change will instantly go live for millions of users.

3194000 10.10.2017 20:53:28

Some thoughts on Indonesia

A lot of Telegram's early adopters come from Indonesia, and now we have several million users in that beautiful country. I am personally a big fan of Indonesia – I’ve been there a few times and have many friends there.

So it made me upset to hear that the Indonesian Ministry of Communication and IT suggested they would have to block Telegram in Indonesia. It turns out that the officials of the Ministry recently emailed us a list of public channels with terrorism-related content on Telegram, and our team was unable to quickly process them.

Unfortunately, I was unaware of these requests, which caused this miscommunication with the Ministry. To fix the current situation, we're implementing the following 3-step solution:

1) We have blocked all the terrorist-related public channels that have been previously reported to us by the Ministry of Communication and IT of Indonesia.
2) I emailed back to the Ministry to establish a direct channel of communication, which should allow us to work more efficiently on identifying and blocking terrorist propaganda in the future.
3) We are forming a dedicated team of moderators with knowledge of Indonesian language and culture to be able to process reports of terrorist-related content more quickly and accurately.

Telegram is heavily encrypted and privacy-oriented, but we’re no friends of terrorists – in fact, every month we block thousands of ISIS-related public channels and publish the result of this work in @isiswatch. We’re constantly striving to be more efficient at preventing terrorist propaganda, and are always open to ideas on how to get better at this.

I emailed the Ministry my suggestions above to hear their feedback. I am confident we can efficiently eradicate terrorist propaganda without disrupting the legitimate use of Telegram by millions of Indonesians. I will keep you updated in this channel on how Telegram will develop in Indonesia – and globally.

2979000 16.07.2017 01:04:29

This week, over 700,000 new users are signing up for Telegram each day. The annual user growth of Telegram surpassed 70% YoY in most markets.

With so many new people joining, not every user may have a clear understanding about what Telegram stands for.

That’s why when announcing the 200M milestone last week, I used the opportunity to write a bit about the values of Telegram and what drives us forward.

https://telegram.org/blog/200-million

2711000 28.03.2018 16:18:59

Disruptions, China and Principles

Our Asian users may have noticed two nasty disruptions in our service in the past week. The Singapore data center we’re using has been causing trouble due to a faulty UPS system. Power losses are something that is never supposed to happen in a data center, so at some point I even thought that this could have been an act of sabotage.

Most likely though, it was “just” a major hardware malfunction. The faulty UPS (Uninterruptible Power Sources) are being replaced by the data center staff as I’m typing this. I hope this will make things right as the absence of power supply is one of the few things we can’t fix by ourselves.

Asia is obviously a huge market for Telegram. However, as you may remember, Telegram has been blocked in China – the continent’s largest market – since 2015, when the Chinese human rights activists started using Telegram to communicate.

We didn’t try to get unblocked there by negotiating with the Chinese authorities. It’s pretty obvious that the Chinese government's desire for total control over its population is incompatible with our values. However, Telegram is still available through VPN services, and recently more Chinese users started to join Telegram after their local app WeChat got compromised –

https://www.bloomberg.com/news/articles/2017-09-15/china-s-wechat-crackdown-drives-bitcoin-devotees-to-telegram

For us this is just another indication that sticking to your principles makes more sense than yielding to pressure. In the long run, compromise based on lies and violations of rights gets you nowhere.

2696000 27.09.2017 14:53:12

Thank you, each and every one of the 12,000+ people who stood up to support the freedom of internet and Telegram today in central Moscow.
https://goo.gl/fEFtQb

2691000 30.04.2018 17:51:01

Happy Valentine's Day! I see some good art in trending stickers, be sure to check it out.

2660000 14.02.2018 14:37:09

On the September 13th Connection Issues

Yesterday Telegram experienced something extraordinary. At 17:45 UTC there was an immense spike in user activity on Telegram that exceeded our peak load by 5 times.

Telegram is different from most other internet services in that we use a distributed server infrastructure, so peak loads cannot make the whole of Telegram go down. However, if one of the Telegram clusters is severely affected, a part of our users can experience difficulties sending and receiving messages.

This is exactly what happened yesterday. Due to the spike, one of the Telegram server clusters went down in part and approximately 15% of the users who were online at the time experienced connection issues from 17:45 to 18:10. The issues were partially fixed at 18:10, but about 11% of online users could still face slow or no performance until 19:00 when the problem was permanently fixed.

The regions that were most affected are Germany, Iraq and the CIS – most notably, Uzbekistan, Russia, Ukraine, Kazakhstan and Belarus. We briefly commented on the situation via Twitter, but I’d like to tell more extensively about it here.

1. First of all, we are extremely sorry for the inconvenience this has caused. The cluster that went down hasn’t had any issues for a few years now, so I can imagine the shock of the users affected by yesterday’s downtime. We understand that you use Telegram constantly for work and leisure, and that we must be online 100% of the time. We take yesterday’s issues very seriously.

2. Secondly, to make sure this doesn’t happen again, we identified the cause of the problem and have eliminated the bottlenecks in our infrastructure that caused the downtime. We think that x5 peak load spikes won’t be a problem any longer. We've also set up a plan to be able to cope with x20 load spikes (however unlikely the x20 scenario may seem) before the end of 2017.

While unfortunately no one can completely rule out the chance of another downtime some time in the future (there’s always a slight probability of some unexpected Black Swan event), I can assure you that we at Telegram are working hard at taking this chance to the lowest in the industry.

We strive to be the winner in every aspect including availability. So far the Telegram uptime stats look good compared to other major communication services – also because Telegram can never go down entirely around the world. But we are not satisfied with just that, and our work continues.

Thanks for your attention, and again – apologizes to anyone who was affected.

2617000 14.09.2017 15:36:11

If you haven’t read it yet, here’s the full story about the US agencies’ attempts to infiltrate Telegram last year: https://thebaffler.com/salvos/the-crypto-keepers-levine

It tells how the FBI tried to influence me and bribe our engineer in May 2016 to make Telegram less secure. Luckily, since neither of us are US citizens, we could afford to refuse their offers and I was able to tell the public about these attempts. If we were American citizens, the FBI would have likely tried to silence us using a legal procedure called a "gag order" – when the US authorities can not only demand that you do something (like plant a backdoor into your app), but also prohibit you from telling the public about it (otherwise you can end up in jail).

That whole story made me ask myself this question: if our team experienced such pressure during just one week’s trip to America, what kind of pressure are US-based tech companies facing every day? How can a privacy oriented company permanently operate from America? We can hope that the open US legal system would defend them, but due to the secrecy of these “gag orders” we would never even know if things went wrong. And unfortunately, Edward Snowden’s revelations confirm some of the worst fears.

The article also provides facts that confirm something that I always feared could be true – that some of the famous and most vocal US-based influencers within the cryptography world are sponsored by the US government to push the agenda of its agencies. Some past cases are widely known (like NSA infiltrating RSA), but it looks like the level of collaboration between US agencies and these influential “privacy advocates” is much deeper.

All of this makes protecting privacy really hard, particularly considering the fact that Google and Apple – the two companies which we are dependent on for mobile operating systems – are based in the US. I don't see any easy recipe or solution to fix this. I wish one day huge companies like Apple and Google can become independent of any government that can distort the mission of their founders (maybe start their own countries?).

Until then, I’ll continue doing my part building Telegram and protecting our users, even if that will require speaking out under gag orders. I know this can probably get me into trouble some day, as it did in the past when I was living in Russia. But this is the only way I can imagine myself going forward, so I don't have and won’t have any regrets. It’s all worth it because of you guys – the millions of users who entrusted their private data to Telegram.

2609000 08.09.2017 14:45:51

Although I normally don't watch football matches, I am very happy to hear France has won the World Cup ⚽

I am a big admirer of French culture, art, design, architecture, cuisine, history and language.

France is certain to play an even larger role in the world culture and economy in years to come 🇫🇷

2568000 15.07.2018 17:32:42

Some tech media reported that the Telegram Desktop app wasn’t secure because it “leaked IP addresses” when used to accept a voice call.

The reality is much less sensational – Telegram Desktop was at least as secure as other encrypted VoIP apps even before we improved it by adding an option to disable peer-to-peer calls. As for Telegram calls on mobile, they were always more secure than the competition, because they had this setting since day one.

During a peer-to-peer (P2P) call, voice traffic flows directly from one participant of a call to the other without relying on an intermediary server. P2P routing allows to achieve higher quality calls with lower latency, so the current industry standard is to have P2P switched on by default.

However, there’s a catch: by definition, both devices participating in a P2P call have to know the IP addresses of each other. So if you make or accept a call, the person on the other side may in theory learn your IP address.

That’s why, unlike WhatsApp or Viber, Telegram always gave its users the ability to switch off P2P calls and relay them through a Telegram server. Moreover, in most countries we switched off P2P by default.

Telegram Desktop, which is used in less than 0.01% of Telegram calls, was the only platform where this setting was missing. Thanks to a researcher who pointed that out, we made the Telegram Desktop experience consistent with the rest of our apps.

However, it is important to put this into perspective and realize that this is about one Telegram app (Telegram Desktop) being somewhat less secure than other Telegram apps (e.g. Telegram for iOS or Android). If you compare Telegram with other popular messaging services out there, unfortunately, they are not even close to our standards.

Using the terminology from the flashy headlines, WhatsApp, Viber and the rest have been “leaking your IP address” in 100% of calls. They are still doing this, and you can't opt out. The only way to stop this is to have all your friends switch to Telegram.

2546000 01.10.2018 19:18:53

The Kaspersky antivirus company claimed today they found a “0-day vulnerability on Telegram for Windows”, which affected “1000 users before it was fixed”.

As always, reports from antivirus companies must be taken with a grain of salt, as they tend to exaggerate the severity of their findings to get publicity in mass media. Telegram Geeks, a community of Telegram fans, gave a good explanation of what it really was about:

2365000 13.02.2018 14:41:45

New Rules for Alternative Telegram Clients

Among many other things, Telegram is unique in that independent developers can create their own Telegram clients. The source code of all our apps is open, and we provide a 100% open and free API on the server side for anyone to build upon.

This level of openness and transparency is unprecedented for mass market messaging apps, and we are proud to provide it. Thanks to this, hundreds of third-party client apps were created for Telegram, and some of them have now reached tens of millions of downloads.

As the Telegram ecosystem grows, however, a need for consistency and predictability arises. This is particularly important when the privacy of users is concerned. For example, self-destructing media should always get self-destructed in all apps in the ecosystem. Providing a way to keep self-destructing media on the receiving end may be tempting, but this would break the trust and violate the privacy of the users that share them.

This is why earlier this week we updated the Terms of Service of the Telegram API. Not much has changed: our API is as free and open, as always. However, we’ve added some new guidelines to the ToS, which are aimed at better protecting the privacy and security of the users, preserving expected behavior across the ecosystem, and also at increasing the transparency of how third-party forks work.

If you are a user or a developer of an alternative Telegram client, please have a look at the updated Terms of Service here – https://core.telegram.org/api/terms. We hope that these new guidelines will allow third party developers to make their apps more useful and secure than ever.

2296000 27.08.2017 15:01:03

Happy April Fools' Day! 🤡 Check out the trending stickers tab, featuring Mr. Trump, Marilyn Monroe and (more importantly) Lazy Panda 🐼

2186000 01.04.2017 10:16:47

This October we are working on new features for @telegram from a castle in Umbria, Italy.

2101000 09.10.2016 18:53:49

Moscow today.

2056000 30.04.2018 17:48:32

Speaking of Telegram's superior technology, a user recently asked me why Telegram “isn’t end-to-end encrypted by default” while some other popular apps are. The question is based on a popular myth, so I wrote a lengthy post about Telegram architecture to disprove it: http://telegra.ph/Why-Isnt-Telegram-End-to-End-Encrypted-by-Default-08-14

In short: when it comes to popular / usable messaging apps, Telegram is the most secure way of communication – was, is, and will be.

2026000 14.08.2017 16:20:50

Happy Equinox / Nowruz (which this year are just 1 day apart)!

This is one of the days of the year that I think are worth celebrating. Among other things, it has an objective astronomical value – days are now officially longer than nights. On such occasions, I make wishes.

One of the wishes I’m making today is that the quality of the media increases. Unfortunately, almost every time I read an article about technology or messaging, some part of it turns out to be inaccurate or plainly false. For example, last week many news outlets came out with articles saying that WhatsApp and Telegram had a major security flaw. In fact, it was only WhatsApp that had a serious problem, while Telegram had a minor issue that was nowhere near.

Even after we made an official statement (http://telegra.ph/Checkpoint-Confusion-NEWS) very few media corrected their catchy (but false) headlines. This is just one of many instances that witnessed the degradation of the media this year. Every day they sacrifice truth in order to sell more ads.

Let us hope the situation changes, but let us also try to make reporters accountable every time they act unprofessionally and neglect fact checking.

2002000 21.03.2017 18:45:22

I haven’t realized how many dedicated users we had in Indonesia until yesterday. I’m still excited by the warm reception in Jakarta. The amount of support and love I got during my yesterday’s visit there is incredible.

In addition to meeting local coders and early adopters of Telegram, I had a lunch with Mr. Rudiantara, the Minister of Communication of Indonesia. Our previous attempts to connect with Mr. Rudi failed because of unreceived e-mails (e-mail is unreliable – let us all switch to Telegram!), but in the end it was all for the best since we managed to establish a great personal connection.

There can’t be any secrets between Telegram and its users, since it’s you guys who made Telegram popular, not governments or shareholders or advertisers (it’s sad other IT companies sometimes forget that). So we organized a quick 15-minute press conference to inform the public about the contents of our meeting with Mr. Rudi.

As a result of this meeting, we've opened a direct channel of communication on Telegram between our teams to quickly eradicate public content that contains terrorist propaganda. We also added Indonesian speakers to our team, and all of this means that we'll be able to process reports about terrorist propaganda within a few hours instead of 1-2 days.

The Minister assured me that he shares our respect for privacy, and the right for privacy is guaranteed by the Constitution of Indonesia. I was happy to hear that, because - unfortunately - governments of some other big countries in Asia don’t always get it (yes, China, I am looking at you now).

We at Telegram are proud that we haven’t disclosed a single byte of private data to any third party since we started – and we are going to keep it that way, with no exceptions anywhere.

I also shared some Telegram growth stats at the quick press event yesterday:

- Every day, 600,000 new users sign up for Telegram globally.
- Every day, 20,000 new users sign up for Telegram from Indonesia.

Thanks for the support, Indonesia and the World!

1935000 02.08.2017 18:57:41

As I promised above, I’m posting more details about how relying on third party CDN caching nodes can securely increase download speed of viral public content in places where Telegram wouldn’t want to place its own servers.

Overview: https://telegram.org/blog/encrypted-cdns
Technical info for client devs: https://core.telegram.org/cdn
CDN FAQ: https://core.telegram.org/techfaq#encrypted-cdns
CDN FAQ in Persian: https://core.telegram.org/cdn/faq_ir

As you can see, CDN caching nodes have nothing to do with relocating Telegram servers or complying with unreasonable local laws. CDNs are merely tools to upgrade connectivity for millions of users in a secure way. We treat these CDN nodes just like we treat the nodes of your internet provider – they only ever get encrypted junk they can't decipher.

What is best about Telegram is that you don’t have to take my word when in comes to security – everyone is welcome to verify the implementation of CDN nodes in the updated Telegram clients for iOS and Android https://telegram.org/apps#source-code. In addition, you might want to have a look at our docs above to check that all is safe.

We rely on an international CDN provider which helps us with caching nodes all over the world. Telegram has nothing to lose if a local government decides to disrupt a caching node on their territory, since the CDN is not our property, and no private data can even in theory be affected. Thus we don’t get into dependance from local governments and laws, have no legal or financial risks, but significantly improve speed of downloads for public content.

If, despite of all of the above, some media come out with clickbait titles like “Telegram moved their servers to North Korea”, please help us by spreading the word about the real situation described in the links in this message. Thanks for reading this, and – as always – I'll keep you updated on everything that goes on around Telegram globally here in my channel.

1912000 23.07.2017 15:17:31

I wonder who lit up all the candles in the cemetery 🎃

1885000 31.10.2015 19:41:48

What is Instant View and Why It's Important

A few years ago, Telegram was one of the first messaging apps to generate previews for links shared in messages. Since then, some of our competitors started to do the same, but we at Telegram like to raise the bar when it comes to messaging. Our ambition now is not only to show you a small snippet previewing the link you were sent, but to give you a quick and easy way to view the contents of the link without having to load the page in your browser.

We call this technology instant View. Instant View is a way to read articles without leaving Telegram, just like you can read this post from the Telegram blog https://telegram.org/blog/first-IV-contest (don’t click on the link, tap Instant View below this message on iOS/Android). Instant View is also the most private and secure means of viewing web stories, because your IP address, cookies and metadata are not logged this way.

The big news this week is that Instant View now supports links from 2,277 websites. From now on, not just Telegram or Medium blog posts, but links to stories of pretty much every mainstream media have an Instant View. This is the result of an epic crowdsourcing effort of 558 coders, who have submitted 37,507 sets of rules to generate instant views. Since May, our platform allowed alternative sets of rules to compete, so that the most accurate ones would ultimately win and bring $100 each to their authors.

As a result, we distributed $251,664 as prizes among 206 winners. This might seem like a lot of money, but no one has ever done anything like that before – the winners virtually helped us parse a big chunk of the internet into a predictable format. The scope of this project is unprecedented, and I’m certain we’re a few years ahead of the competition here (to be fair – Facebook has a similar tech called Instant Articles, but it supports only a handful of web-sites, because, unlike Instant Views, it requires significant effort from publishers to set it up).

On some Instant Views you will see a ‘Join’ button that allows you to subscribe to the channel of the media that published the story. This means their news site added a code on its page that refers to its Telegram channel (like <meta name="telegram:channel" content=“@nameofthechannel”>). This will allow publishers to establish direct connection with their readers on Telegram, eventually monetizing this link sharing activity on our platform.

Of course, there’s still a lot left to do. If Instant View is gradually replacing your web-browser for links, its UI should have features that will allow you to bookmark a page to return to it later (bookmarks, tabs, history). And while 2,277 is already a huge and unprecedented number (the full list of supported domains is here https://instantview.telegram.org/contest), eventually we’d like to support many more websites. The end goal is to make almost all the stories that you share on Telegram instantly viewable.

1773000 10.08.2017 15:35:29

Cycling around Saimaa for 370km got us to Kummakivi, the balancing rock. This 7-meter long stone was left standing here by the Ice Age (or the Giants, whichever version you prefer).

1752000 30.06.2018 09:59:02

We launched Telegram for iOS exactly 4 years ago, on the 14th of August, 2013. It’s been an amazing 4 years, mostly because of your continuous support and feedback.

Telegram is growing like a rocket: 50+% annual growth rate in MAU/DAU, over half a million daily signups. And while you can do a lot with Telegram already, there are many more features and ideas that we are yet to implement. It might sound like a cliche, but this is just the beginning.

I know you love Telegram for its superior technology and constant innovation. But I believe the real value of Telegram lies in you – the dedicated Telegram community that shares our passion for freedom and privacy (don’t worry though, the tech superiority part is not going anywhere 😉).

1715000 14.08.2017 16:19:32

My motto is “Never be afraid”. Even when an app's icons are trying to scare you. Happy Halloween! 🎃

P.S. To see those icons, you'll need to have the latest version of Telegram for iOS installed.

1521000 31.10.2018 15:08:25

Also, the ability for users to add a small bio to their profiles in Telegram seems to be a decent idea. It should be 100% optional, editable in the Settings. Their design could look exactly like the description of channels. It could contain links and mentions of other Telegram users/bots/channels.

With usernames, large groups and channels Telegram gradually becomes a more open environment. Every time you stumble upon new users in that environment you might want to learn more about them. That's where bios could help.

1480000 30.10.2015 21:53:15

As some of you might have guessed, apart from jogging bathing and rowing we did some work this week. Lots of @telegram users asked for the possibility to have larger limits for groups and the ability appoint admins in groups. So we were working on it most of this week.

Not me, obviously – I was mainly bathing and rowing (someone has to do the really hard stuff).

1386000 30.10.2015 21:34:14

As you might have heard, for the last couple of years we’ve been quietly rebuilding Telegram for iOS from scratch with Swift – a programming language released by Apple as a faster alternative to Objective C.

The Swift version of Telegram looks exactly as the old one, but is faster, slicker and more battery-friendly than the good old Telegram (which was already great considering it outperformed other messaging apps in speed).

This new Telegram has been available for everyone to download under the name “Telegram X” since January. Thousands of users have been testing it and sharing their feedback with us, so thanks to them the app is now much more polished than a few months ago. While we are still putting some finishing touches on it, it seems that the new Telegram is ready to be shipped to every Telegram user on iOS.

That’s why within the next week or two we are planning to update the default Telegram iOS App with the Swift version. As a result, Telegram will become faster, slicker and more efficient. Since it will rely on an entirely new codebase, some minor bugs and glitches might occur, but we’ll make sure they are quickly – or should I say “swiftly” – fixed.

This change will make Telegram the most popular messaging app written fully in Swift. Some would say it’s a big risk, but I think somebody has to take such risks and be the first to implement new technologies, such as e2e encryption – or Swift.

908000 18.09.2018 19:54:15

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