A recent G7 report highlights the potential impact of quantum technologies on the financial system, emphasizing the need for financial institutions to prepare for significant changes to security, payments, and market infrastructure. The report identifies post-quantum cryptography as a key solution for protecting financial systems against future quantum-enabled attacks, but notes that implementation will require complex coordination across interconnected systems and vendors1. Quantum technologies are expected to have far-reaching applications in areas such as portfolio optimization and fraud detection, but also pose significant risks to current cryptographic systems. As quantum developments advance, the timeline for migrating to post-quantum cryptography is narrowing, increasing the urgency for financial institutions to plan and implement these changes. This matters to practitioners because the failure to adapt to quantum technologies could leave financial systems vulnerable to attack, highlighting the need for proactive planning and investment in post-quantum cryptography.