Site in Cumbria can now return to routine inspections but concerns remain over cybersecurity

The UK nuclear industry regulator has taken Sellafield, the world’s largest store of plutonium, out of special measures for its physical security – but said concerns remained over its cybersecurity.

Guarding arrangements at the vast nuclear waste dump in Cumbria have improved enough to allow for routine inspections from the Office for Nuclear Regulation (ONR), rather than requiring “enhanced regulatory oversight”.

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Source: https://www.theguardian.com/environment/2025/feb/19/sellafield-nuclear-site-taken-out-special-measures-physical-security