Meta's Post-Quantum Crypto Migration Playbook

Meta published a practical six-step playbook for moving production systems to post-quantum cryptography.

Its guidance favors hybrid setups like ML-KEM768 with X25519 for key exchange and ML-DSA65 with ECDSA for signatures, rather than pure PQ-only designs.

The move signals that post-quantum migration is now an operational requirement, not just a research exercise.

It also underscores the need for organizations to inventory and upgrade cryptographic systems ahead of the 2027 CNSA 2.0 deadline.