Regulatory Landscape of Modern Banking: The Shift to Infrastructure
With the evolution in banking technology, the regulatory focus is shifting from traditional chartered institutions to the infrastructure they cannot operate without. Banks now rely on a variety of vendors, including cloud providers, core banking platforms, payment processors, identity networks, and API intermediaries. This shared infrastructure layer, which forms the operational backbone of banks, has prompted a rethinking of regulatory parameters, which were historically drawn around the institution holding the charter.
The Operational Reality of Modern Banks
Modern banking operations are heavily intertwined with vendor platforms. For instance, a midsize bank’s core processing likely runs on one of a handful of vendor platforms. The bank’s deposits, lending, and payments flow through shared networks. Fraud detection, identity verification, and infrastructure are increasingly dependent on third-party data aggregators and hyperscale cloud environments. In essence, at every layer, a bank is a tenant on someone else’s platform.
This shared infrastructure creates efficiency and access to capabilities most banks could not build alone. However, it also introduces a unique kind of risk that traditional supervision was not designed to manage: the socialization of operational failure. Disruptions to a single core banking vendor can result in a correlated outage across a segment of the financial system. This risk belongs to no single charter, yet every institution on that platform absorbs the impact.
Regulatory Evolution: Infrastructure Comes into Focus
Given the systemic risk that technology providers can create or transmit across the financial system, regulators are increasingly questioning whether such providers should remain outside the regulatory perimeter. The answer, increasingly, is no.
Recent regulatory activity reflects this shift. The European Union’s Digital Operational Resilience Act extends oversight to critical technology service providers serving financial institutions. U.S. federal banking agencies have proposed frameworks for designating and examining systemically important technology service providers. The Bank of England’s operational resilience regime focuses on critical business services, regardless of whether delivery is internal or third party. The direction is consistent across jurisdictions: The regulatory perimeter is expanding to include infrastructure, not just institutions.
Implications for Banks
The shift in regulatory focus has far-reaching implications for banks. Banks that rely heavily on a small number of critical providers may find those providers facing new examination requirements, reporting obligations, and operational standards that could change the economics of the relationship.
Decisions about a bank’s technology architecture are also becoming regulatory decisions. A bank’s choice of cloud provider, core platform, and integration approach now carries implications for how supervisors assess its operational resilience. Multicloud strategies, portability requirements, and exit planning are no longer purely technical considerations. They are governance questions, and risk committees that treat them as IT procurement topics are mispricing the exposure.
On the competitive front, large banks with the resources to build proprietary infrastructure or negotiate bespoke arrangements with technology providers are better positioned to absorb these new constraints. Smaller institutions, which depend more heavily on shared platforms, face a different reality. They are increasingly regulated not just directly by their supervisors, but indirectly through the compliance costs and operational requirements imposed on their vendors. These costs will inevitably flow downstream through pricing, contract terms, and reduced flexibility.
Conclusion
The regulatory perimeter of banking is expanding to match the operational reality of how banks actually function. This represents a structural shift, not a mere policy adjustment. Banks that address this issue now will have more room to adapt. Those that treat infrastructure oversight as someone else’s concern may find that regulators have already decided otherwise. In a rapidly evolving banking landscape, a bank’s regulatory posture is no longer fully within its own control. When a critical vendor becomes subject to new supervisory expectations, the bank’s risk profile changes regardless of anything the bank itself has done.
Regulators are right to focus on the infrastructure layer, as it is where much of the risk actually resides. But proportionality matters. If the compliance burden imposed on critical vendors is not scaled to their role and capacity, the predictable result is further market concentration. The policy goal and the policy risk point in the same direction. The institutions that confront this question now will have more room to adapt. Those that treat infrastructure oversight as someone else’s concern may find that regulators have already decided otherwise.
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