Information security expert of the League of Digital Economy Andrey Slobodchikov in an interview with the agency
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If we consider the most popular messengers in Russia, then in terms of security and convenience, Viber and Telegram reach a decent level.
Andrey SlobodchikovInformation security expert of the Digital Economy League
Viber has an end-to-end encryption system,where adding a contact is not accompanied by uploading data to servers, the specialist explained. He also added that Telegram implemented the unique MTProto protocol, and a similar end-to-end encryption method was added only to secret chats.
In addition, WhatsApp and Telegram, unlikeViber, have access to contact data and store it on their separate servers, Slobodchikov said. According to him, Viber is able to collect much more metadata than other messengers, but provides for their partial encryption.