A Strategy Guide to Network Segmentation Best Practices

This guide serves as a comprehensive resource for organizations aiming to develop and implement an effective network segmentation strategy. It outlines the strategic objectives related to risk management, compliance, and security, detailing methods to achieve these goals. The guide discusses common challenges and pitfalls to avoid during the segmentation process, emphasizing the importance of logical isolation through access controls. It explains how segmentation can help confine cyberattacks to specific network zones, thereby enhancing security. Additionally, the guide addresses compliance with standards such as PCI-DSS and NERC CIP, which necessitate clear data separation within networks. It also emphasizes the need for a manageable approach to segmentation, warning against over-segmenting, which can complicate network management. The guide provides actionable steps for organizations to begin segmentation, including establishing baseline policies, identifying ownership, and ensuring manageability throughout the segmentation process.