Crypto Agility: Why PQC Is Not a One-Time Upgrade
Cisco, Thursday, September 3rd, 2026
Cisco argues post-quantum cryptography requires ongoing crypto agility in infrastructure, not a single migration project.
Cisco makes the case that post-quantum cryptography should not be treated as a one-time migration to be completed and forgotten. Algorithms, standards and threat assessments will continue to change, so infrastructure needs the ability to swap cryptographic primitives repeatedly without redesign.
The post explains why crypto agility is the actual requirement behind PQC readiness and what adaptable infrastructure looks like in practice.
It argues organizations that build agility now will absorb future cryptographic changes at far lower cost.