Internet-connected industrial control systems (ICS) have become a growing concern for cybersecurity professionals. Anxiety spiked after a German nuclear power plant had to shut down in April 2016 because of a Conflicker worm that got into its networks. An infected ICS may be a great node with which to communicate with command-and-control servers and infect other devices, but the malware is highly unlikely to be able to directly affect the controlled system. Researchers identified 3,000 unique industrial sites per year that are infected with nontargeted malware.”]
Source: https://securityintelligence.com/news/ics-infections-are-fewer-than-previously-thought/