The Telegram messenger is extremely appreciated all over the world thanks to its  infrastructure for secure communication. Data encryption of the application is carried out using the cryptographic protocol MTProto, which is the own development of the creators of Telegram. Pavlo Durov, the creator of the platform, and his team of developers focused on the maximum protection of user information. They were the first who invented and globally adopted secret chats, where data and content of a chat is being stored according to the end-to-end principle and deleted after some time.