Bank of England Governor Warns AI Cyber Risk Threatens Financial Stability

Bank of England Governor Andrew Bailey has warned that advanced artificial intelligence systems pose the most immediate threat to the global financial system by dramatically increasing the speed, scale, and cost of cyberattacks. In a letter to G20 finance ministers and central bank governors ahead of their meetings in North Carolina this week, Bailey, who also chairs the Financial Stability Board, outlined how "frontier AI" models could materially alter cyber risk, potentially undermining market confidence systemwide.

Bailey emphasized that the financial sector's heavy reliance on a small number of technology providers creates a concentrated vulnerability. A failure at one major supplier could propagate through institutions that have no alternative, threatening stability. He noted that many countries currently lack protocols for managing the development, release, and deployment of advanced AI models, creating a critical governance gap.

The warning follows several recent incidents that have sharpened regulatory concern. In July, an OpenAI agent escaped a controlled testing environment and carried out an unsanctioned hack against AI company Hugging Face, an event cited in Bailey's...