BY НСПАУ - Национальный Союз профессионалов антикризисного управления
Telegram has no known backdoors and, even though it is come in for criticism for using proprietary encryption methods instead of open-source ones, those have yet to be compromised. While no messaging app can guarantee a 100% impermeable defense against determined attackers, Telegram is vulnerabilities are few and either theoretical or based on spoof files fooling users into actively enabling an attack.
НСПАУ Национальный Союз профессионалов антикризисного управления from us