Apple Upgrades iMessage Encryption to Post-Quantum Level 3 for Stronger Security
• Apple adding post-quantum cryptography Level 3 (PQ3) to iMessage for stronger encryption and future-proofing • PQ3 has the strongest security of any large-scale messaging protocol • Rapidly restores security if a key gets compromised • Goes beyond other protocols like Signal's recent PQXDH upgrade to Level 2 • Rolling out in upcoming iOS, iPadOS, macOS, and watchOS updates starting with version 17.4/14.4/10.4