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Bank of England Governor Warns AI Poses Growing Risk to Financial Stability

Bank of England Governor Andrew Bailey has warned G20 officials that advanced AI could increase cyber threats and financial contagion risks, urging preparedness for severe scenarios.

AI News Feed · 2026-09-01 23:32

In a letter to G20 finance ministers and central bank governors ahead of their ongoing meeting, Bailey said the increasing sophistication of AI models could change the speed, scale, and impacts of cyberattacks on the financial sector. He noted that AI systems are quicker at discovering vulnerabilities, faster at exploiting them, and more accessible to criminals.

“The global financial system is highly interconnected, and cyber disruption can spread across jurisdictions through common technology providers, shared infrastructure, and cross-border financial activity,” Bailey wrote. He argued that a concentration risk could increase the reach of any incident, warning that different countries have significantly different levels of cyber resilience, regulation, incident response capabilities, legal protection, and recovery readiness. While one target country may be at lower risk, other countries involved in an incident could compromise all others.

Bailey urged financial institutions to prepare for much more severe scenarios rather than smaller, more isolated cases.

He also highlighted a second, separate AI-related financial risk. Valuations of risky assets remain elevated, and a major shock or multiple simultaneous shocks could expose financial vulnerabilities. Bailey pointed out that multiple AI firms, cloud providers, and chip companies are highly intertwined financially, and this cross-investment could be disastrous in any future corrections.

The G20 Finance Ministers and Central Bank Governors Meeting is now ongoing, and any remedies or responses to the letter are yet to be confirmed.

The Bank of England governor has formally alerted G20 officials to two AI-linked financial stability threats: faster, more accessible cyberattacks and concentrated cross-investments in tech firms. His warning calls for institutions to ready for severe scenarios, while responses from G20 members have not yet been made public.

Editor's Summary

Bank of England Governor Andrew Bailey has warned G20 leaders that AI models could amplify cyber risks and that intertwined investments in tech firms may worsen market corrections. He urged financial institutions to prepare for severe scenarios, with G20 responses still pending.