Micro-Segmentation Strategies

Understanding Micro-Segmentation

Micro-segmentation divides networks into small, isolated zones with specific security controls. Unlike traditional segmentation creating broad network zones, micro-segmentation operates at workload and application levels, enabling precise security policies.

Design Patterns

Effective micro-segmentation requires thoughtful design. Segment by application tier, data sensitivity, user role, and business function. Create default-deny policies allowing only explicitly authorized communications.

• Application-tier segmentation (web, app, database)
• Data sensitivity-based isolation
• User role and privilege segmentation
• Business function boundaries
• Default-deny security posture

Implementation Approaches

Organizations can implement micro-segmentation using network-based solutions, host-based firewalls, or software-defined perimeters. Choose approaches matching your infrastructure, applications, and operational capabilities.

Policy Management

Micro-segmentation creates numerous security policies requiring careful management. Automate policy creation where possible, maintain policy documentation, and regularly review policies for relevance and effectiveness.