Is Telegram Really Secure? — 4 Major Privacy Issues Raised by Researcher
Terrorists love Telegram because it not only provides an encrypted Secret Chat feature that lets its users broadcast messages to unlimited subscribers but also offers self-destructing message allowing users to set their messages to self-destruct itself after a certain period.
Is Telegram Really Secure?
1. Error prone
2. Contact Theft
“This allows Telegram to build a huge social network map of all its users and how they know each other,” the Grugq wrote in his blog post.
3. Leak Voluminous Metadata
4. Wonky Homebrew Encryption