Channels are not fully encrypted, end-to-end. All communications on a Telegram channel can be seen by anyone on the channel and are also visible to Telegram. Telegram may be asked by a government to hand over the communications from a channel. Telegram has a history of standing up to Russian government requests for data, but how comfortable you are relying on that history to predict future behavior is up to you. Because Telegram has this data, it may also be stolen by hackers or leaked by an internal employee. Some privacy experts say Telegram is not secure enough "He has to start being more proactive and to find a real solution to this situation, not stay in standby without interfering. It's a very irresponsible position from the owner of Telegram," she said. For example, WhatsApp restricted the number of times a user could forward something, and developed automated systems that detect and flag objectionable content. Although some channels have been removed, the curation process is considered opaque and insufficient by analysts.
from ua