~/talk

Increasing the Analysis Surface of Large Language Models

Talkat BSidesSF 2026 · on Saturday, 2026-03-21· at 15:15· AMC Theatre 14, AMC at Metreon· [large-language-models, security]
links:none on file
name:Ulrich
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slides:none on file

Claim: model internals reveal attack signals that black‑box filters miss. The team develops attention-based analysis linking unsafe prompts to attention patterns, trains a classifier on five open‑source malicious prompt datasets and reports 98% / 85% / 98% / 87% / 78% detection on Mistral‑7B. They integrate the method into an Olama front end / Fort wrapper that blocks jailbreaks and math‑encoded exploits without input/output filtering. Work is NIST‑funded (SBIR) and presented as a complementary mitigation, not a complete solution.

AI-written summary · about

  1. 0:00Introduction and speakers
  2. 1:50Agenda and transformer basics
  3. 5:26Human vs transformer thinking
  4. 11:05LLMs in cyber security
  5. 18:22Limitations of input-output filters
  6. 21:12Semantic leakage and attacks
  7. 23:47Analyzing model internals
  8. 25:34White box analysis demo
  9. 30:10Fort wrapper in action
  10. 33:01Documentation and model cards
  11. 35:28Key takeaways and future work
  12. 38:37Q&A session
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