@kevinrothrock well, yeah, but it was no oversight but an intentional design choice by Durovs back in the days. They justified it by the need to “blend” into the array of innocent apps and not get outright banned by totalitarian regimes.
their idea (at least as explained) was that having e2e encryption disabled by default allows for more conveniences (e.g., seamless sync of your chat history across devices and virtually unlimited cloud storage for your files.) Which, in turn, will make the app more appealing to casual users than, say, some alternatives that prioritize privacy at all costs and hence require users to jump through hoops. Effectively, if the app becomes popular among casual users, having it on your phone won't become a red flag immediately qualifying you as “extremist” in the eyes of law enforcement. Meanwhile, those who really need privacy are free to use secret chats anyway.
now, whether it was a good strategy and whether it succeeded is a different story. At least in Russia, it seems that it worked okay-ish.
@kevinrothrock There is nothing in the quoted text that isn't true. It *does* offer end-to-end encryption. It's just not on by default everywhere.
People often compare Telegram with Signal. This is comparing apples with oranges. Telegram is not a "secure messenger" - it is a social network that allows encrypted communications. Pretty much like Facebook. People should be comparing Telegram's encrypted messaging with Facebook's Messenger.