Operational resilience used to be a continuity problem: build enough redundancy, hit your recovery time objectives and keep regulators satisfied. That formula no longer holds. Regulation, AI-driven capacity constraints, data sovereignty and quantum-era threats are converging on the physical layer of financial infrastructure at the same time—and decisions about where workloads run are now made in boardrooms. This whitepaper examines each of these four fundamental shifts, with evidence and sector-specific implications for capital markets, banking and payments, and insurance. It concludes with a four-step blueprint for building resilient, adaptable infrastructure—and shows how leading institutions are already putting it into practice.