Britain must press for international safeguards before artificial intelligence security failures become unmanageable, Foreign Secretary Yvette Cooper will argue.
Cooper will describe AI as the greatest security challenge of the next decade in an article for Chatham House.
According to Beinsure, her argument places AI governance alongside foreign and national security policy rather than within a narrow technology brief.
The Foreign Secretary draws a comparison with nuclear governance after the Second World War. Global powers established safety arrangements only after Hiroshima and Nagasaki exposed atomic weapons’ destructive force.
Her position is direct. Governments should not wait for an AI disaster before agreeing shared rules.
Yvette Cooper was appointed Secretary of State for Foreign, Commonwealth and Development Affairs on 5 September 2025. She was previously Secretary of State for the Home Department from 5 July 2024 to 5 September 2025.
She was elected as the MP for Pontefract, Castleford and Knottingley in July 2024.
The intervention follows a United Nations warning over AI misuse in cybercrime, fraud and disinformation. The UN-backed scientific panel said poorly controlled AI development carries risks of catastrophic harm as national authorities struggle to keep pace.
Antonio Guterres repeated the warning at the first UN Global Dialogue on AI Governance in Geneva. He said AI deployment is moving faster than developers and governments are keeping pace.
In June, the Five Eyes intelligence alliance warned that frontier models could reshape offensive and defensive cyber operations within months. Its statement covered the United States, UK, Canada, Australia and New Zealand.
The warning followed restrictions around Anthropic’s Mythos model after concerns over its ability to find serious software flaws. Anthropic said its controlled preview identified thousands of high-severity vulnerabilities across critical software and major operating systems.
Cooper will argue that frontier technology offers economic and social gains only where governments reach sufficient agreement on safety rules. Britain, she says, has a credible role in this debate after hosting the first AI Safety Summit in 2023.
Her speech will point to autonomous weapons systems with direct lethal capacity. It will also address extremist chatbots that radicalise users and AI-generated child sexual abuse material.
Cooper links AI governance to pressures already affecting British households and businesses. Conflict abroad has raised energy costs and food prices, while cyber threats and migration pressure have intensified.
According to Beinsure, the speech frames AI oversight as part of the UK’s wider effort to rebuild influence in a less stable international environment. Cooper will urge Britain to act faster so it shapes global rules instead of reacting to decisions made elsewhere.v
