Financial Sector Steps Up Post-Quantum Security Push

Advances in quantum computing could eventually break encryption that underpins financial transactions, identity verification and online communications. The threat extends beyond cybersecurity: compromised cryptographic systems could erode trust among banks, customers and markets. Attackers may also collect encrypted data now and decrypt it once quantum capabilities mature, increasing pressure on financial institutions and their technology suppliers to begin a complex, multi-year transition before current protections become vulnerable.

The US Treasury and Taiwan’s Financial Supervisory Commission have established response groups and issued migration guidance for the financial sector. Institutions are being steered to inventory cryptographic assets, assess quantum exposure and prepare to deploy post-quantum cryptography, or PQC, with readiness targeted by 2035. The timetable makes migration a major enterprise transformation challenge, as banks must coordinate upgrades across core systems, vendors and cross-border transaction networks while maintaining security and operational continuity.