[eitland]

The point of Signal is supposed to be that to the best of our knowledge, even if all its packets are run through FSB and NSA, and even if they captured all Signal employees at once and somehow forced them all to cooperate, your messages should still be safe until they manage to push an app update that compromises the app.

Of course this only helps as long as your device isn't backdoored but that is true for any app.

(I say this as someone who regularly defend Telegram here, because in my opinion I don't have to pick one or another.)