WhatsApp does use the Signal protocol, but unlike Signal only applies it to Messages, Calls and Status.
Your profile info, who you’re talking to, when you’re using the service, groups you’re in, channels you’re following and much more is left unprotected intentionally.
For instance, Signal sends your profile end-to-end-encrypted instead of leaving it freely accessible on servers.
Isn’t WhatsApp using Signal protocol? Isn’t also iMessage using post quantum computing cryptography like Signal?
I know Signal is superior privacy wise, but is not that used
WhatsApp does use the Signal protocol, but unlike Signal only applies it to Messages, Calls and Status.
Your profile info, who you’re talking to, when you’re using the service, groups you’re in, channels you’re following and much more is left unprotected intentionally.
For instance, Signal sends your profile end-to-end-encrypted instead of leaving it freely accessible on servers.