Apple has joined Google, WhatsApp and 44 other signatories in penning an open letter to the U.K.’s cybersecurity agency GCHQ. The open letter asks the agency to abandon plans for the so-called “ghost protocol.”
This would force encrypted message services to allow eavesdropping by silently adding “a law enforcement participant to a group chat or call.” In essence, it would make it possible to inject hidden participants into secure messaging services.