It was done by Signal themselves: https://signal.org/blog/whatsapp-complete/ https://signal.org/blog/whatsapp-complete/ The client is closed so it can't be ind

It was done by Signal themselves: https://signal.org/blog/whatsapp-complete/ https://signal.org/blog/whatsapp-complete/ The client is closed so it can't be independently verified outside of sniffing traffic or decompilation I assume.