We might have a world first on a proper and just DRM implementation
Signal has implemented DRM to protect against the adversarial functionality dubbed Recall 
By Default, Signal Doesn't Recall
Signal Desktop now includes support for a new “Screen security” setting that is designed to help prevent your own computer from capturing screenshots of your Signal chats on Windows.Signal Messenger


feld
in reply to h3artbl33d • • •breaks screen readers which is a stupid side effect but I don't know what other choice they have
Amazing how quickly they jumped on this considering the years and years of other giant security holes they neglected in Desktop