Harvest now, decrypt later: why post-quantum planning starts today

Attackers can record encrypted traffic today and keep it until a quantum computer can break the algorithms that protect it. Records that must stay confidential for ten years or more are exposed now.

NIST has published post-quantum standards, including ML-KEM for key establishment and ML-DSA for digital signatures. Migration takes years because cryptography is embedded in applications, devices, certificates and partner connections.

A sound programme starts with a cryptographic inventory, ranks systems by data lifetime and exposure, and introduces hybrid classical and post-quantum protection where risk is highest. The SAVIS Quantum Readiness Program and Quantum PQC Lab follow this approach.