We thought so. The lack of auto destructing messages is inconvenient but not a deal breaker. But it uses SMS to authenticate new sessions... we were a target o

We thought so. The lack of auto destructing messages is inconvenient but not a deal breaker. But it uses SMS to authenticate new sessions... we were a target of attack that exposed our group. A few users had not set up two factor authentication so they woke to a warning from telegram that someone is logged in to their account from across the world.