[yogthos]

The key point in all this is that nobody seems to have a working exploit to show. Traditionally, when people claim that something is insecure they have to provide tangible evidence of that being the case. I'm not aware of any published exploits that show MTProto to be insecure.

People also seem to conflate the fact that encryption is not on by default, or that it doesn't apply to stuff like voice chat with questions about the quality of the protocol. This is a completely separate topic of discussion.

[pseudalopex]

Operational security is part of security. The article is not "Why MTProto is insecure".

Traditionally when people claim a system is cryptographically secure it's after rigorous analysis. MTProto isn't scientifically interesting. Two short contests several years ago don't make it financially interesting. The groups with the most incentive to break it have the least incentive to publish.