Kaspersky Blog – 1.19.23
Telegram’s developers position their product as safe and protected. But in practice that’s not entirely true: the reality is that Telegram has a number of quirks that make protecting your messages a little tricky, and it’s got nothing to do with the complexities of cryptography, but with much more prosaic stuff. Let’s take a look at some rather dubious features in both the messenger’s interface and general logic that make it less secure than is commonly believed.
Source: Is Telegram a secure messenger?