Surprisingly Telegram awfully good on that list
Edit: I forgot to add that I found something little of about that report where Signal hash to phone numbers are absent " Which clearly signal store it"! And on Threema FBI still includ it even though it’s optional and 99℅ of the user will not put their number.
Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.
In this community everyone is welcome to post links and discuss topics related to privacy.
[Matrix/Element]Dead
much thanks to @gary_host_laptop for the logo design :)
The Telegram app is open-source and the encryption algorithm as well. The problem is that it uses an totally non-standard in-house developed encryption algorithm that security researchers are suspicious off (but no actual vulnerabilities are known right now).
They are finding problems like “crime-pizza”:
https://ethz.ch/en/news-and-events/eth-news/news/2021/07/four-cryptographic-vulnerabilities-in-telegram.html
Nothing super serious though so far… depending on your definition though :)