Apple Fortifies iMessage Encryption With Unhackable Post-Quantum Protections
• Apple has updated iMessage encryption with new "post-quantum" protections called PQ3 that it claims are the strongest in the world • PQ3 uses an algorithm called Kyber that is designed to be secure against future quantum computing attacks • Apple created a new "Level 3" security tier, saying PQ3 surpasses protections of other major messaging apps • The update guards against "harvest now, decrypt later" attacks storing data to decrypt with future quantum computers • Cryptography experts like Matthew Green have complimented Apple's new defenses as "very good" but also called them overkill for now