The iterative breakthroughs in quantum computing pose a realistic security threat to public−key cryptosystems built upon traditional mathematical hard problems. As an important field of the national critical information infrastructure, the financial industry relies on the secure and stable operation of its information systems, which bears directly on national economic security and global financial stability. Against the backdrop of major economies actively advancing post−quantum cryptography (PQC) migration, China's financial industry is systematically promoting PQC migration at multiple levels, including the legal and compliance framework, algorithm standardization, key technology research, and regional engineering practice, thereby exploring a practicable path for the financial system to meet quantum security challenges. In the future, building an autonomous, controllable, secure, and efficient quantum−safe protection system for finance through the coordinated efforts of national strategic guidance, rule of law, and industrial practice will be of major strategic significance for consolidating the security foundation of financial infrastructure in the digital economy era and for safeguarding the long−term sound development of the financial industry.

post−quantum cryptography (PQC)  /  critical information infrastructure of the financial industry  /  cryptographic migration  /  quantum safety