Edward Snowden flags Telegram over security concerns, but founder Durov disagrees

NSA whistleblower Edward Snowden has flagged Telegram over its security on Twitter, a charge that the app’s founder has denied.
Telegram, the rival messaging app to WhatsApp which recently hit headlines over its popularity with terror group ISIS, is facing criticism on Twitter over its claims of being secure and encrypted.
The concern over Telegram was first raised by Matasano Security’s firm’s Thomas H Ptacek who posted that the app “stores the plaintext of every messag