"We know that the risk [of a cyber-attack] will increase as we continue to roll out digital technology across the network..."
Hackers have the ability to tap into the European Rail Traffic Management System (ERTMS) currently being trialled in the UK and cause havoc according to a leading rail expert. Professor David Stupples told the BBC that plans to replace the current system based with a computer based one could leave the rail network exposed to cyber-attacks. Prof. Stupples - an expert in networked electronic and radio systems at City University in London - said if someone hacked into the system they could cause a "nasty accident" or "major disruption". "It's the clever malware [malicious software] that actually alters the way the train will respond," he explained. "So, it will perhaps tell the system the train is slowing down, when it's speeding up."