The Bank of England’s Big Tech Gambit: Why Regulating Amazon and Google Could Reshape UK Finance

Why the Bank of England is stepping into Big Tech’s turf

On Monday, the UK’s financial regulators will assume a role unprecedented in their history: direct oversight of some of the world’s largest technology companies. The Bank of England (BoE) and the Financial Conduct Authority (FCA) will begin regulating four major providers of cloud and tech services to banks—Amazon Web Services (AWS), Google Cloud, Microsoft, and Oracle—under new powers granted to ensure the resilience of the UK’s financial system.

This move marks a radical departure from traditional financial regulation, which has focused on banks, insurers, and investment firms. The shift reflects growing concerns that the financial sector’s increasing reliance on a handful of tech giants for critical infrastructure—such as cloud computing, data storage, and cybersecurity—creates systemic risks. A single outage or cyberattack on one of these providers could disrupt services for millions of customers and businesses, destabilising the economy.

The decision is not without controversy. Critics argue that the BoE is overstepping its mandate by regulating companies outside the financial sector, while others warn that the move could stifle innovation or drive tech firms away from the UK market. But for the BoE, the calculus is clear: the risks of inaction are too great.

The systemic threat: Why Big Tech’s failures could break the UK economy

The financial sector’s dependence on a small number of tech providers is a vulnerability that regulators can no longer ignore. According to a 2023 report by the BoE, over 65% of UK banks now use cloud services from AWS, Google Cloud, or Microsoft for core operations, including payment processing, customer data storage, and fraud detection. For some institutions, these services are so deeply embedded that a prolonged outage could bring their operations to a halt.

The risks are not theoretical. In 2021, a major outage at AWS disrupted services for banks, retailers, and government agencies across the UK and Europe for nearly eight hours. While the financial sector was not the hardest hit, the incident exposed how a single point of failure in the tech supply chain could cascade across industries. More recently, a cyberattack on a cloud provider used by several UK banks in 2024 led to temporary account freezes and delayed transactions, highlighting the fragility of the system.

The BoE’s new powers will require these tech firms to demonstrate robust cybersecurity measures, regular stress-testing, and contingency plans to prevent or mitigate outages. They will also be subject to on-site inspections and must report any incidents that could impact financial stability. Failure to comply could result in fines or, in extreme cases, restrictions on their ability to provide services to UK banks.

For the tech giants, this represents a significant shift. Until now, they have operated under general data protection and cybersecurity laws, but have not been subject to financial-specific oversight. The new regime will force them to adapt their operations to meet the BoE’s standards—a process that could be costly and complex.

The global precedent: Is the UK leading or overreaching?

The UK is not the first country to grapple with the financial risks posed by Big Tech, but its approach is among the most aggressive. In the European Union, regulators have focused on data protection and competition, while the US has relied on voluntary agreements between tech firms and financial institutions. The UK’s decision to grant the BoE direct oversight powers sets a new benchmark for how governments can regulate tech companies that operate at the intersection of finance and infrastructure.

This move could have global implications. If the UK’s model proves effective, other countries may follow suit, creating a patchwork of regulations that tech firms must navigate. Conversely, if the regime is seen as overly burdensome, it could deter investment in the UK’s financial sector or push tech firms to prioritise markets with lighter-touch oversight.

There are also concerns about regulatory overlap. The UK’s Competition and Markets Authority (CMA) and the Information Commissioner’s Office (ICO) already oversee aspects of Big Tech’s operations. The BoE’s new role could create conflicts or redundancies, particularly in areas like data privacy and competition law. To mitigate this, the BoE and FCA have pledged to coordinate closely with other regulators, but the practical challenges of aligning multiple agencies with different mandates remain significant.

What it means for consumers and businesses

For most consumers, the BoE’s new powers will be invisible—until something goes wrong. The primary benefit is greater resilience: if a tech provider suffers an outage or cyberattack, the BoE’s oversight should reduce the likelihood of prolonged disruptions to banking services, payments, or access to accounts.

However, there are potential downsides. The additional regulatory burden on tech firms could lead to higher costs, which may be passed on to banks and, ultimately, to customers. There is also a risk that smaller fintech firms, which rely on the same cloud providers, could face higher barriers to entry if compliance costs rise.

For businesses, the implications are more complex. On one hand, greater resilience in the financial system could reduce operational risks. On the other, the new rules could limit the flexibility of banks and fintechs to adopt innovative technologies quickly. For example, a bank might hesitate to migrate to a new cloud provider if the regulatory approval process is lengthy or uncertain.

The BoE has sought to balance these concerns by focusing its oversight on the largest and most critical providers. Smaller tech firms that provide niche services to banks are unlikely to be subject to the same level of scrutiny, at least initially. This targeted approach aims to minimise disruption while addressing the most significant risks.

The political dimension: Labour’s in-tray and the future of UK regulation

The timing of the BoE’s new powers is notable. With Andy Burnham set to become prime minister in less than two weeks, the incoming Labour government will inherit a regulatory landscape that is rapidly evolving. Burnham has pledged to deliver “improvements for all parts of the UK,” but his government will face immediate pressure to address the cost of living, welfare reform, and geopolitical tensions—all while navigating the fallout from the UK’s departure from the EU.

Financial regulation is unlikely to be a top priority for Burnham’s administration, but the BoE’s move could set the tone for how Labour approaches tech and innovation. The party has historically been sceptical of unchecked corporate power, particularly in the tech sector, and may view the BoE’s oversight as a model for future interventions. However, Labour will also be wary of stifling growth or driving investment away from the UK.

The new regulatory regime could also become a point of contention with the US, where tech giants like Amazon and Google are headquartered. The Biden administration has already expressed concerns about the UK’s approach to tech regulation, particularly in areas like data privacy and competition. The BoE’s powers could add to these tensions, particularly if US firms perceive the rules as protectionist or overly burdensome.

The bigger picture: Is this the future of financial regulation?

The BoE’s decision to regulate Big Tech reflects a broader shift in how governments are responding to the growing influence of technology on the economy. As financial services become increasingly digitised, the lines between tech and finance are blurring. Regulators are no longer just overseeing banks—they are overseeing the infrastructure that banks rely on.

This shift raises fundamental questions about the role of regulators in the digital age. Should central banks and financial authorities be responsible for overseeing tech companies, or is this a step too far? Can regulators keep pace with the rapid evolution of technology, or will they always be playing catch-up? And how can governments balance the need for resilience with the desire to foster innovation?

For now, the UK is betting that proactive regulation is the best way to mitigate the risks of a tech-dependent financial system. Whether this gamble pays off will depend on how effectively the BoE and FCA can implement their new powers—and how tech firms respond. One thing is clear: the relationship between finance and technology will never be the same.