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The UK government has formally designated four of the world’s largest cloud service providers as Critical Third Parties (CTPs), placing them under direct supervision by the country’s financial regulators in a landmark move to strengthen the resilience of Britain’s financial system.
UK to financially regulate major cloud providers
The designation covers Microsoft Ireland Operations Limited, Google Cloud EMEA Limited, Amazon Web Services EMEA SARL and Oracle Corporation UK Limited, reflecting the increasingly critical role cloud infrastructure plays in the delivery of banking, payments and financial market services.
The new oversight regime comes into force next week and marks one of the most significant regulatory developments in operational resilience since the introduction of the UK’s wider financial resilience framework.
Cloud Infrastructure Becomes a Regulatory Priority
Financial institutions have accelerated their migration to cloud-based infrastructure over the past decade, relying on hyperscale providers to support everything from payments processing and customer-facing applications to fraud detection, data analytics and artificial intelligence.
While cloud computing has delivered significant gains in scalability, resilience and innovation, regulators have become increasingly concerned that heavy reliance on a small number of providers could create systemic risks should a major technology outage or cyberattack occur.
The UK government said that disruption affecting a single cloud provider could simultaneously impact multiple banks, insurers and financial market infrastructures, potentially interrupting services relied upon by millions of consumers and businesses.
Joint Oversight Across Financial Regulators
Under the new framework, the Bank of England, Prudential Regulation Authority (PRA) and Financial Conduct Authority (FCA) will jointly supervise the designated providers.
The regulators will have powers to request information, assess operational resilience, conduct testing and require firms to address risks that could threaten the continuity of critical financial services. Where necessary, they will also be able to introduce and enforce provider-specific resilience requirements.
The objective is not to regulate cloud providers as financial institutions, but to ensure that services considered systemically important to the financial sector maintain robust governance, operational controls and recovery capabilities.
Economic Secretary to the Treasury and City Minister Rachel Blake said the new framework would help maintain confidence in the UK’s financial system by ensuring critical technology services remain resilient while supporting continued innovation and economic growth.
Growing International Focus on Operational Resilience
The UK’s approach reflects a broader international trend towards greater oversight of technology providers supporting critical financial infrastructure.
The European Union has already designated 19 technology providers under its own regulatory framework through the Digital Operational Resilience Act (DORA), while financial regulators globally have increased their focus on concentration risk arising from dependence on a small number of hyperscale cloud vendors.
All four designated providers have publicly supported the objectives of the UK’s new framework. Google Cloud said the regime has the potential to strengthen long-term resilience while improving transparency and cooperation between technology companies and financial regulators.
For the payments industry, the decision represents an important evolution in regulatory thinking. As digital payments, real-time settlement, artificial intelligence and cloud-native banking become increasingly interconnected, operational resilience is extending well beyond banks themselves. Regulators are now recognising that safeguarding financial stability requires oversight not only of financial institutions, but also of the technology infrastructure that underpins the modern digital economy.
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