D3FEND — Harden

When to Use

• Implementing authentication controls (MFA, certificates, biometrics, tokens)
• Hardening applications and platforms (configuration, patches, encryption)
• Managing credential lifecycle (rotation, pinning, scrubbing, policies)
• Validating input and enforcing domain/operational logic
• Securing source code (memory safety, pointer validation, dead code elimination)
• Reviewing boot integrity, driver signing, and firmware protections

When NOT to Use

• Detection engineering or monitoring → d3fend-detect
• Network segmentation or access mediation → d3fend-isolate
• Decoy and deception operations → d3fend-deceive
• Incident response or eviction → d3fend-evict
• Secure coding deep dives → devsecops / senior-software-engineer