UK Says Iran, China Drive Regular Significant Cyberattacks

April 21, 2026, 11:01 PM UTC

Hackers linked to foreign governments are now behind the majority of “nationally significant” cyberattacks targeting the UK, the country’s top cybersecurity official is set to warn.

Richard Horne, chief executive officer of the National Cyber Security Centre, or NCSC, is scheduled to say in a speech on Wednesday that the country is facing four consequential cyberattacks every week and living through the “most seismic geopolitical shift in modern history,” according to a preview of his remarks, which were reviewed by Bloomberg News.

Horne named China, Iran and Russia as key adversaries posing a threat to UK cybersecurity.

“Criminal activity ...

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