Why monitoring the most popular P2P messenger should be a cybersecurity priority

The report reviews Telegram's security posture and documented misuse: optional end-to-end encryption and a proprietary MTProto protocol lead to misconfigurations and auditability concerns; a 2016 breach exposed millions of Iranian user records via compromised SMS verification; researchers have shown metadata exposure and media-file jacking on Android; law enforcement and state actors have intercepted traffic in some cases; and Telegram channels have been used to sell and operate malware (e.g., Masad Clipper/Stealer). The piece recommends active monitoring of Telegram channels and chats (for example via CloudSEK's XVigil) to detect and mitigate threats to organizations and brands.