Sellafield Ltd will have to pay almost £400,000 after it pleaded guilty to criminal charges over years of cybersecurity failings at Britain’s most hazardous nuclear site.
The state-owned company, operator of the vast nuclear site Cumbria, northwest England, left information that could threaten national security exposed for four years, according to the industry regulator, the Office for Nuclear Regulation (ONR), which brought the charges. It was also found that 75% of its computer servers were vulnerable to cyber-attack.