Danish train standstill on Saturday caused by cyber attack - DR

"We were contacted by our subcontractor who told us that their testing environment had been compromised by criminal hackers," DSB's chief of security, Carsten Dam Sonderbo-Jacobsen, told DR. While not a direct attack on DSB, the attack prompted subcontractor Supeo to shut down its servers, which in turn affected locomotive drivers' ability to operate the trains for several hours on Saturday, according to DR.

A major breakdown of Denmark's train network during the weekend was the result of a malicious hacker attack on an IT subcontractor's software testing environment, Danish train operator DSB told public broadcaster DR on Thursday. "We were contacted by our subcontractor who told us that their testing environment had been compromised by criminal hackers," DSB's chief of security, Carsten Dam Sonderbo-Jacobsen, told DR.

While not a direct attack on DSB, the attack prompted subcontractor Supeo to shut down its servers, which in turn affected locomotive drivers' ability to operate the trains for several hours on Saturday, according to DR. DSB was not immediately able to comment when contacted by Reuters.