Telegram users paid attention to an interesting feature of the messenger. Its mechanism assumes that administrators can read the correspondence.
At the time of authorization, Telegram sends a five-digit code. If you first send it to another user and then use it, the system will not accept it. The same happens when the user hides the code inside an arbitrary text. However, the code will not be revoked if it is sent through secret chat rooms.
Former Telegram employee Anton Rosenberg explained to the publication “The Code of Durov” why this is happening.
” It’s simple and logical. To protect users so that they do not send code to hackers, they check the sent messages: whether this code enters there as a substring. “