Airports and nuclear power stations on terror alert as UK government officials warn of 'credible' cyber threat
The Sellafield nuclear plant in Cumbria in the UK. Photo: PA
Airports and nuclear power stations in the UK have been told to tighten their defences against terrorist attacks in the face of increased threats to electronic security systems.
Security services have issued a series of alerts in the past 24 hours, warning that terrorists may have developed ways of bypassing safety checks.
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