~/talk

Unsafe LLM-Based Search: Quantitative Analysis and Mitigation of Safety...

Talkat USENIX Security '25 · 2025-08-13..08-15· [large-language-models, security]
name:Zeren Luo
links:none on file
links:none on file
name:Yule Liu
links:none on file
name:Zhen Sun
links:none on file
links:none on file
links:none on file
name:Xinlei He
links:none on file
slides:none on file

Quantifies unsafe outputs on seven AIPSEs using URLs from PhishTank, ThreatBook, LevelBlue, testing 3 query types (keyword lists, natural language, direct URL) with a 325→100 sampled set; finds frequent main risks (malicious URLs embedded in answers), shows two case studies where fake docs exfiltrate API keys and a spoof site outranks the real one, and demonstrates a client-side agent with GPT-4.1-based content refinement plus a URL detector that cuts exposure while costing about ~10.7% information loss.

AI-written summary · about

  1. 0:00Unsafe LLM search risks
  2. 1:35Malicious AI search results
  3. 3:20Quantifying AI search safety risks
  4. 4:24Query simulations for testing
  5. 7:15Risk assessment framework
  6. 9:27Malicious link prevalence
  7. 10:50Compromised documentation attacks
  8. 12:38Fake sites masquerading as official
  9. 13:42Client-side defense system
  10. 14:24Summary and future directions
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