Britain will start directly overseeing four cloud providers that support its financial sector on 13 July. HM Treasury has designated Amazon Web Services EMEA SARL, Google Cloud EMEA Limited, Microsoft Ireland Operations Ltd and Oracle Corporation UK Limited as the first Critical Third Parties (CTPs). Their relevant services will enter a joint regime run by the Bank of England (BoE), the Prudential Regulation Authority (PRA) and the Financial Conduct Authority (FCA). [1][2][3]
What designation changes
The regime targets a particular vulnerability: many banks, insurers and financial-market infrastructures rely on a small number of external technology providers. If a common provider suffers a cyberattack or outage, the disruption can affect multiple firms or markets at once instead of remaining one company's operational problem. [1][2]
The three regulators will focus on the resilience of critical services supplied to UK finance. Designated providers must identify and manage relevant risks and maintain timely communication with regulators and the firms that rely on them, especially during major incidents. Reuters reports that resilience testing, regular self-assessments and major-incident reporting will also be required. [1][2][3]
What designation does not change
CTP status is not an authorisation to provide financial services, and it does not make a cloud provider responsible for every operational decision made by a bank. The BoE says the oversight is limited to the resilience of services supplied to UK financial firms. Individual firms remain responsible for due diligence, risk management and contingency planning for their own third-party arrangements. [2]
That distinction matters. This is not a general attempt to regulate the cloud sector; it is a system-level response to a shared dependency inside finance. The policy gives regulators a view across services used by many institutions, while those institutions retain responsibility for managing their own exposure. [2][3]
For learners, the event makes a usually invisible dependency easier to see. The policy is built on a shared technical dependency: many institutions can be exposed to the same supplier and the same disruption. [1][2] That makes resilience a collective question, not just a private IT concern. The next test is implementation: whether the new oversight improves incident readiness without treating technology providers as banks. [2]
The designation also creates a learning loop for firms that depend on the same infrastructure. A bank can map which service is essential, identify the recovery time it actually needs, test a failure scenario and report what changed. That makes resilience more than a compliance label: it turns shared cloud dependence into an observable system that regulators, operators and customers can question. [1][2][3]
