QuSecure Deployment Cited as Real-World Precedent in SEC Post-Quantum Framework

The Post-Quantum Financial Infrastructure Framework (PQFIF), submitted to the U.S. Securities and Exchange Commission’s Crypto Assets Task Force, identifies the implementation project between QuSecure, Banco Sabadell, and Accenture as a primary benchmark for industry-wide adoption. The framework describes the four-month deployment as evidence that transitioning to post-quantum cryptography (PQC) is both technically and operationally viable for large-scale financial institutions. Serving as the sole "Real-World Implementation Precedent" within the document, the case study highlights a shift from theoretical planning to the immediate execution of quantum-safe protocols within established banking environments.

Technical findings in the PQFIF emphasize that the QuProtect platform enabled the integration of quantum-safe standards without a comprehensive system overhaul. By utilizing network-layer encryption and crypto-agility, the project demonstrated that major financial entities can modernize their security stack while maintaining existing infrastructure frameworks. This deployment builds on the foundations established during the initial partnership between Banco Sabadell, Accenture, and QuSecure, which focused on verifying the practical viability of PQC in live banking layers.

The submission to the SEC underscores the systemic risk posed by a Cryptographically Relevant Quantum Computer (CRQC), citing research that suggests the quantum threat could materialize as early as 2028. The framework notes that the current digital asset ecosystem faces an existential risk to trillions of dollars in assets, potentially leading to a loss of market confidence if cryptographic standards are not upgraded. By providing a structured methodology for cryptographic inventory and risk-based migration, the framework aims to secure U.S. capital markets against "harvest now, decrypt later" threats while ensuring continuous operational compliance.

For further technical details on the SEC framework and the Banco Sabadell case study, consult the official QuSecure announcement here. You may also refer to our previous report on the partnership between Banco Sabadell, Accenture, and QuSecure here.

March 23, 2026