Of course Signal would need to implement the protocol
Yes, that’s what I’m asking. What protocol? Is the DMA requiring anyone else to use this protocol? If so, are they required to use the WhatsApp open protocol?
This doesn’t need to include any security vulnerabilities.
Of course there doesn’t need to be but someone has to decide which protocol to use, and if it’s up to the EU it is most likely an insecure one, considering how they tried to end encrypted chats altogether.