Of course it does? That’s like one of the main headlining features of both Signal and Telegram, and why people were looking at either instead of Whatsapp. And it was even louder than Telegram about it, since telegram uses (or used) a closed source encryption, while Signal was vocally using an Open Source encryption standard if I remember correctly.

Yeah, encryption and security is signal’s whole thing. They even removed the ability to send SMS a while back because they were prioritizing security over all else. Def check it out