Surprise! Likewise, Instagram uploads your contact list to their servers (phone numbers, names, emails) to help find friends (confirmed with mitmproxy as well). At least you have to click "Find from my contact list" first.
This practice is super-common. The last ordeal around this was a year or so ago with Kik, but then everyone stopped caring. At least Instagram is over https.
This practice is super-common. The last ordeal around this was a year or so ago with Kik, but then everyone stopped caring. At least Instagram is over https.