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EPISODE · May 28, 2026 · 20 MIN
Ep 12 | Peter Girnus & Derek Chen - FENRIR: AI Hunting for AI Zero-Days at Scale | [un]prompted 2026
from [un]prompted Security Practitioner Con 2026 · host [un]prompted
Day 1 | Stage 1FENRIR has discovered 100+ vulnerabilities across AI infrastructure since mid-2025, with 21 CVEs patched including multiple CVSS 9.8 RCEs. Presents FENRIR's multi-stage verification pipeline: static analysis pre-triage, two-layer LLM validation (L1 prune → L2 deep-verify), and confidence-based human routing. Covers what worked (research-backed context generation, CWE-specific agents, pattern recognition) and what failed.Peter Girnus is Senior Threat Researcher, Trend Micro's Zero Day Initiative (ZDI).Derek Chen is Vulnerability Researcher, TrendAI.Watch on YouTube: https://www.youtube.com/watch?v=c6_bRzHCf3U
What this episode covers
Day 1 | Stage 1FENRIR has discovered 100+ vulnerabilities across AI infrastructure since mid-2025, with 21 CVEs patched including multiple CVSS 9.8 RCEs. Presents FENRIR's multi-stage verification pipeline: static analysis pre-triage, two-layer LLM validation (L1 prune → L2 deep-verify), and confidence-based human routing. Covers what worked (research-backed context generation, CWE-specific agents, pattern recognition) and what failed.Peter Girnus is Senior Threat Researcher, Trend Micro's Zero Day Initiative (ZDI).Derek Chen is Vulnerability Researcher, TrendAI.Watch on YouTube: https://www.youtube.com/watch?v=c6_bRzHCf3U
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Ep 12 | Peter Girnus & Derek Chen - FENRIR: AI Hunting for AI Zero-Days at Scale | [un]prompted 2026
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