US Department of Homeland Security’s Industrial Control Systems Cyber Emergency Response Team (ICS-CERT) The malware infected a handful of machines during a software update initiated by an outside technician. Remote access to SCADA systems could enable a saboteur or hacker to cause serious infrastructure damage. The incident resulted in three weeks of downtime at the power plant in the US. The team advises strict restriction to vital systems and USB drives needs to be in place to prevent future infections. Even if the systems lack an internet connection, they can still be exposed to malware.”]
Source: https://www.bitdefender.com/blog/hotforsecurity/malware-infecting-us-power-plant-scada-systems/