Pavel Durov

So all our apps have been open, available on GitHub since 2013.

And then we added end-to-end encryption in our secret chats, which

WhatsApp copied a few years after.

One year and three months ahead, they just started to test it.

They rolled it out, I think, 2016, which is three years after us.

And the only reason I think the rest of the industry had to do it is because we set the standards.

It was incredibly important back in the day and at the same time we realized certain limitations of end-to-end encryption.

So within that design, that architecture, you can't support very large chat communities with consistent persistent chat histories.

You can't support huge one-to-many channels.

You'd have issues with maintaining

bots that have lots of incoming messages multiple device support becomes tricky people will end up losing some of the documents they share so we also saw a lot of issues and we ended up having this sort of hybrid experience where depending on your use case and your requirements you can choose the level of

encryption that we want to have.

Yes, and secret chats are not just end-to-end encrypted.

There are certain limitations that are both the feature and the bug.

For example, you can't screenshot them, you can't forward any document, any message from them, which is not necessarily something you need when you're trying to get some work done and you're just communicating with your team on a project.

So it became very clear to us that there are different needs here.

And if you try to combine both in one type of chat, you will end up losing a lot of utility.

You know, we at Telegram, we don't use any

collaboration tool for teamwork.

We used Telegram to build Telegram.