This is an original article from the NIST Manufacturing Innovation Blog.
Industrial control systems (ICS) help manufacturers boost productivity, optimize efficiency and advance production lines. Historically, ICS networks were isolated from the information technology (IT) networks and internet, or “air gapped.” Today, air gapping is no longer an effective security strategy, and for various business reasons, many ICS manufacturing networks are now integrated with IT networks and connected to the internet. This makes ICS more vulnerable to cyber threats such as malware, malicious insider activity and human error.