The head of Britain’s domestic intelligence agency, MI5, has warned that artificial intelligence systems acting independently of human oversight could one day pose serious national security challenges — though he dismissed notions of a “Terminator”-style apocalypse.
In his annual speech on national threats, MI5 Director General Ken McCallum said that while AI is already being used to strengthen British security operations, it is also being exploited by terrorists, hostile states, and cybercriminals. He said AI tools are helping adversaries spread propaganda, conduct reconnaissance, and manipulate elections.
“But in 2025, while contending with today’s threats, we also need to scope out the next frontier: potential future risks from non-human, autonomous AI systems which may evade human oversight and control,” McCallum said.
He emphasized that his warning was not a prediction of science-fiction-style catastrophe, but a call for preparedness as AI technology rapidly evolves. “Given the risk of hype and scare-mongering, I will choose my words carefully. I am not forecasting Hollywood movie scenarios,” he noted.
McCallum added that while AI may never intentionally mean harm, ignoring its potential dangers would be “reckless.” MI5 and other intelligence agencies are studying the long-term implications of increasingly autonomous systems.
The remarks reflect a broader debate within global intelligence and tech circles about balancing the benefits of AI innovation with the risks of automation and loss of control over powerful systems.