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UK must brace for rise in state-backed cyberattacks, security chief says

Richard Horne said the agency now handles about four nationally significant incidents a week as hostile states drive the most serious attacks.

  • On Wednesday, Richard Horne, head of the National Cyber Security Centre , warned at the CyberUK conference in Glasgow that hostile states including Russia, Iran, and China now pose the most serious cyber threats to Britain.
  • Security Minister Dan Jarvis warned that hostile nations aim "not to confront us directly, but to quietly hollow us out" by hacking logistics systems, as AI allows adversaries to identify vulnerabilities faster than human teams can patch them.
  • The NCSC currently manages about four nationally significant incidents weekly; the government announced £90 million of investment over three years, inviting firms to join a voluntary Cyber Resilience Pledge.
  • Horne warned that in a conflict scenario, companies could face large-scale attacks where they "will not be able to pay their way out" to recover systems, necessitating urgent AI-powered defense investment.
  • Disrupting over 20 Iran-linked plots since 2022, MI5 highlighted that state actors are "almost certainly using cyber activity to support the repression of British individuals" on UK streets, signaling a seismic geopolitical shift.
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Most serious cyberattacks against the UK now from Russia, Iran and China, cyber chief will say

The head of the U.K.'s National Cyber Security Centre warns that hostile nations like Russia, Iran and China are behind the most serious cyberattacks in the U.K.

·United States
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Winnipeg Free Press broke the news in Winnipeg, Canada on Tuesday, April 21, 2026.
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