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UK spy chief warns of AI danger, though not disaster-movie doom

Published by Global Banking & Finance Review

Posted on October 16, 2025

2 min read

· Last updated: January 21, 2026

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UK spy chief warns of AI danger, though not disaster-movie doom
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LONDON (Reuters) -AI systems acting without human control could one day pose a security threat, the head of Britain's MI5 spy agency said on Thursday, although he said he was not predicting doom

UK MI5 Chief Highlights AI Risks Without Predicting Catastrophe

AI Risks and Security Implications

LONDON (Reuters) -AI systems acting without human control could one day pose a security threat, the head of Britain's MI5 spy agency said on Thursday, although he said he was not predicting doom scenarios as depicted in sci-fi movies.

Tech leaders have warned about the dangers of unchecked AI, and that people should be concerned about a "Terminator" future, as seen in the film series about an artificial intelligence system that becomes self-aware and tries to wipe out humanity.

In his annual speech on threats to Britain, MI5 chief Ken McCallum said AI was used by the British security services to make their work more effective, while terrorists employed it for propaganda and target reconnaissance, and state actors to manipulate elections and sharpen cyberattacks.

Current Use of AI by Security Services

"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," he said.

Future Risks of Autonomous AI

"Given the risk of hype and scare-mongering, I will choose my words carefully. I am not forecasting Hollywood movie scenarios ... But, as AI capabilities continue to power ahead, you would expect organisations like MI5 ... to be thinking deeply, today, about what 'Defending the Realm' might need to look like in the years ahead," he said.

Balancing Hype and Reality

"Artificial intelligence may never ‘mean’ us harm," McCallum said. "But it would be reckless to ignore the potential for it to cause harm. We’re on the case."

(Reporting by Michael HoldenEditing by Peter Graff)

Key Takeaways

  • MI5 chief warns of AI security risks without predicting disaster.
  • AI is used by security services for efficiency and by terrorists for propaganda.
  • Future autonomous AI systems may pose risks if not controlled.
  • MI5 is preparing for potential future AI threats.
  • AI may not intend harm but could still cause it.

Frequently Asked Questions

What is Artificial Intelligence?
Artificial Intelligence (AI) refers to the simulation of human intelligence in machines programmed to think and learn. AI systems can perform tasks that typically require human intelligence, such as visual perception, speech recognition, and decision-making.
What are cybersecurity threats?
Cybersecurity threats are malicious attacks aimed at stealing, damaging, or disrupting computer systems, networks, or data. These threats can take various forms, including malware, phishing, and ransomware.
What is a security threat?
A security threat is any potential danger that could exploit a vulnerability in a system, leading to unauthorized access, data breaches, or damage to information assets.
What is target reconnaissance?
Target reconnaissance involves gathering information about a specific target to assess its vulnerabilities and strengths. In the context of AI, it can be used by malicious actors to plan attacks.

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