Post-Quantum Cryptography for Banks: A Migration Playbook

Standfirst

The standards are usable and the financial-sector roadmap is becoming clearer. Banks now need to turn quantum risk into an owned, testable migration programme tied to critical services and normal technology renewal.

From Cryptographic Inventory to Quantum-Safe Banking

For banks, post-quantum cryptography is no longer a distant research subject. It is a long-duration operational resilience programme. The practical question is not when a sufficiently capable quantum computer will arrive. It is whether a bank can identify every material use of vulnerable public-key cryptography, prioritise it by business impact and data life, and change it without interrupting payments, authentication, customer channels or regulated records.

That urgency is grounded in a maturing evidence base. NIST says organisations should begin applying its first three final post-quantum standards now, while the Bank for International Settlements says awareness and cryptographic inventory are critical foundations. The managerial task is therefore to build migration capacity before deadlines, threat signals or vendor withdrawals compress the timetable.

Why bank post-quantum cryptography migration starts with exposure