The Signal Protocol is a set of cryptographic specifications that provides end-to-end encryption for private communications exchanged daily by billions of people around the world. After its publication in 2013, the Signal Protocol was adopted not only by Signal but well beyond. Technical informat...
I haven’t seen their refusal but I imagine it’s for the same reason they ditched SMS.
They don’t want their users confused about what is and is not a secure message.
Chats to Whatsapp would still be E2EE.
They would also collect all of the metadata that would make you NOT want to use WhatsApp in the first place.
Weird because iMessage users have literally zero issue working out who is using SMS.
Really? Did you interview all 1 billion Apple users?