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Fighting Fire with Venom: Adversarial Defense Against...

Talkat USENIX Security '25 · 2025-08-13..08-15· [security]
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Venom is an inline reverse proxy (implemented on Cloudflare Workers) that fingerprints requests—headers, TLS fingerprints, IP clusters, request cadence—and routes high‑risk crawlers to a poison engine that injects tiny text flips or semi‑transparent image overlays while leaving user views untouched. A validation literature shows 0.1–2% poisoned training data can cut QA accuracy ~35% or provoke hallucinations; a mid‑2025 scan found ~9% of sites disallowing GPT‑bot and Cloudflare already blocks many crawlers by default. Venom will be open‑sourced but raises CFAA and ethical questions.

AI-written summary · about

  1. 0:00Shadow copy of the internet
  2. 1:13AI data gold rush costs
  3. 3:44Voluntary crawling rules failed
  4. 7:16Websites hard gatekeeping
  5. 9:23Booby trap era with Venom
  6. 12:54Venom’s Drake Shake effect
  7. 14:44Accountability with micro weapons
  8. 17:54Flipping crawler’s cost-benefit
  9. 19:42Legal risks of data poisoning
  10. 21:09Venom for honest conversation
  11. 21:51Call for cooperation
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