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U.S. government resources for cybersecurity

Department of Homeland Security’s principles and practices can help to prevent industrial control system incidents.

By Marty Edwards, director, Department of Homeland Security, Industrial Control Systems Cyber Emergency Response Team
Aug 27, 2015

The subject article in your July 2015 issue of Control Design by Dan Herbert (“Tear Down This Wall,” Control Design, July 2015, p20), has given me cause for concern as it ignores fundamental security issues that can be introduced when connecting control system environments to other environments such as business networks. While the world is becoming more and more interconnected and “connecting machines to IT systems provides a number of benefits,” such connectivity, if not installed properly, can introduce many security challenges. These inter-connections can enable security vulnerabilities and potential pathways for compromise of the control environment by malicious threat actors.

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