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The Guardian - UK
The Guardian - UK
Business
Anna Isaac and Alex Lawson

Sellafield apologises after guilty plea over string of cybersecurity failings

Photo montage and graphic tinted in red of the Sallafield plant and its central dome
The Sellafield nuclear site is home to the largest store of plutonium on the planet. Composite: Guardian Design/Alamy

Sellafield has apologised after pleading guilty to criminal charges relating to a string of cybersecurity failings at Britain’s most hazardous nuclear site, which it admitted could have threatened national security.

Among the failings at the vast nuclear waste dump in Cumbria was the discovery that 75% of its computer servers were vulnerable to cyber-attacks, Westminster magistrates court in London heard.

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