Cybersecurity Blog: The Cyber Scene is evolving, are you?

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Brett Young is an ICS Security Lead for Leidos. His focus is on SCADA, ITIL, Governance and Compliance. He has helped organizations move from ineffectiveness toward a business-driven posture, based on a secure, resilient infrastructure. Brett works with clients to redesign their ICS networks to a more defensible model, based on ISA/IEC 62443 and NERC CSF guidelines for network segmentation. Among his past clients are several Fortune Fifty banking, investment, oil and gas, and pharmaceutical companies.

The value of segmenting local area networks into security zones is widely recognized yet rarely done well. Many large production environments are susceptible to today's sophisticated attacks due to a focus on perimeter security, leaving internal networks as a “flat” architecture, and difficult to defend from well-designed exploits. Attacks on poorly segmented networks are often the result of malware having found the easiest path in, then moving to penetrate more valuable assets within the enterprise WAN.

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