d3fend-isolate

What problem does it solve?

Guides cybersecurity isolation controls using MITRE D3FEND—access mediation, content filtering, execution isolation, and network segmentation. Covers access policies, permissions, content validation, process isolation, allowlisting, and traffic filtering. Use when segmenting networks, restricting access, filtering content, or isolating execution—not for detection (d3fend-detect), hardening (d3fend-harden), or deception (d3fend-deceive).

Core Features & Use Cases

• Access mediation controls across Network, Web Session, File, and Physical access
• Content filtering and validation (format, metadata, and structure) and execution isolation via sandboxing
• Network isolation through VLANs, micro-segmentation, and DNS/IP allowlisting
• Reference-guided implementation and integration with existing security workflows

Quick Start

Outline a D3FEND-based isolation plan for a given environment and generate concrete control assignments.