Hacker News new | ask | show | jobs
by Krasnol 2134 days ago
When I installed Telegram for the first time, people in my address book saw me and wrote me. How did that happen?
1 comments

Because Telegram uses phone's contact list for contact discovery. There's nothing unusual about this. This how Signal, Riot, Threema, Wire and dozens and dozens of messengers work.
So just like Signal?

Why is that being brought up as difference?