Chat control is a technical joke and the EU council knows it.
You cannot have end-to-end encryption with a government backdoor. It is a mathematical impossibility. The Council of the European Union trying to sneak this "Chat Control" proposal through a fast-track written procedure before recess is cowardly, but more importantly, it is a catastrophic security risk.
I manage networks for a living. If I told my boss we were going to scan all internal communications on user devices before encrypting them, I would be fired for introducing a massive vulnerability. Client-side scanning is not "targeted safety." It is local malware mandated by the state.
The 800 scientists who signed the open letter are right. Once the scanning infrastructure is on the device, the security model is dead. It will be abused, leaked, or hijacked. I left a corporate gig years ago because management covered up a state-level surveillance exploit. This is that same philosophy, just scaled to half a billion people.
How are you planning to handle your communication if this passes? I'm already looking at self-hosting Matrix nodes for my family back in France.