Darktrace Enterprise Immune System vs Passive Network Audit Framework (PNAF) v0.1.2: 2026 Comparison

Darktrace Enterprise Immune System

Enterprise security teams with flat networks or highly distributed infrastructure will get the most from Darktrace Enterprise Immune System because unsupervised machine learning catches zero-day and insider threats without requiring tuning or threat intelligence feeds. The platform covers physical, virtualized, cloud, and ICS environments from a single on-premises appliance, and its NIST DE.CM and DE.AE coverage is genuinely strong on the detection side. Skip this if your organization needs integrated response automation or SOAR-like orchestration; Darktrace stops at detection and visualization, leaving containment and remediation to your existing tools.

Passive Network Audit Framework (PNAF) v0.1.2

Security teams running threat hunts or building detection baselines on a budget will find value in Passive Network Audit Framework v0.1.2's ability to extract network behavior patterns without active probing, reducing alert fatigue from intrusive scanning. It's a Honeynet Project tool with 32 GitHub stars, meaning it's maintained by threat researchers but hasn't reached wide adoption; you're getting upstream detection work, not a polished product. Skip this if you need real-time alerting or vendor support; PNAF is for engineers comfortable reading code and tuning detection rules themselves.