Days before Christmas in 2015, remote hackers took control from Ukrainian grid operators and by digitally commandeering substations, shut off power for 225,000 customers for several hours.
Attacks on critical national infrastructure are growing in number and sophistication. So how big is the UK's risk?
National Grid spokesperson tells SC "gas and electricity networks are isolated from our everyday business systems to ensure our networks remain safe and reliable."
A new piece of industrial control malware has emerged. Dubbed, Industroyer by its analysts, the piece spells trouble for industrial control systems.