[mzltest]

I was also merely talking about privacy concerns from the outside. Data leaks, user data leaks etc.

Then no company should be safe unless you have your own solutions.

No matter Discord,or Telegram you shouldn't really sending sensitive information as long as their servers stores your chat history (and I am wondering if they use encryption,they must have some techniques to decrypt them to respond to policy violation,or fully dependent on report feature that only send what is visible to reporter) for becoming a good target of cyber attacks.So no absolutely safe solution.

There are tools that encrypt messages on your own like UEncrypt but that requires the other person in your chat use that tool and have your public key,and for the safest practice the process of exchanging keys need to be a face-to-face task.