Telegram

The encrypted messaging platform, Telegram, is terrible security-wise, despite advertising itself as being secure; don't use it. Use Signal instead (for iPhone/iOS and Android.)

Why Telegram should not be used:

• https://twitter.com/kennwhite/status/678234766018088961

• https://twitter.com/mrphs/status/695296023116304385

• http://www.csmonitor.com/World/Passcode/2015/0224/Private-chat-app-Telegram-may-not-be-as-secretive-as-advertised