Bank of England Governor Andrew Bailey warned that advanced 'frontier' AI models pose new risks to the global financial system by increasing the speed, scale, and economics of cyber risk. He highlighted that these highly sophisticated and autonomous AI systems could undermine market confidence, especially due to reliance on concentrated third-party service providers [1, 2, 3].
Bailey wrote a letter on August 31 to G20 finance ministers and central bank governors ahead of their 2026 summit in North Carolina. In the letter, he emphasized vulnerabilities stemming from AI alongside existing market fragilities such as high leverage in sovereign debt and equity markets, stretched valuations, and concentrated investments in AI-related sectors. He warned these could amplify a severe market correction [1, 4, 2, 3].
"Frontier AI may have the ability materially to alter the speed, scale and economics of cyber risk," Bailey said, calling for improved protocols and stronger global coordination to manage the development, release, and deployment of advanced AI models to safeguard financial stability [1].
Bailey also expressed concern that a large shock or combination of shocks — including AI disruptions, geopolitical risks, and energy shocks linked to US-Iran tensions — could trigger concurrent vulnerabilities, leading to a disorderly global market correction [1, 4, 2].
Bailey chairs the Financial Stability Board (FSB), which coordinates international financial regulatory policies to identify and manage systemic risks [1, 2, 3].
On the same day, UK Chancellor John Healey announced a £100 million fund to support British AI start-ups as part of the UK’s sovereign AI strategy aimed at solving national challenges and bolstering cybersecurity and defense. Healey said, "Britain is home to some of the most innovative AI companies in the world, and this government is backing them to start, scale and succeed here in the UK" [4].
The letter serves as a formal warning on the risks advanced AI technology poses to global markets and calls for international cooperation ahead of the G20 finance leaders meeting scheduled in North Carolina.
