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Known By Their Actions: Fingerprinting LLM Browser Agents via UI Traces
arXiv cs.LG — Machine Learning
Factual evidence
What the source reports
Researchers demonstrate that websites can passively identify specific frontier LLMs driving web browser agents using UI interaction traces.
Inspect the evidence
- Inclusion basis
- Enterprise AI
- Publisher and source type
- arXiv cs.LG — Machine Learning · RESEARCH
- Published by source
- 11 November 2026
- Collected by OneBench
- 12 Nov 2026, 02:02 UK
Stored source excerpt
arXiv:2605.14786v2 Announce Type: replace-cross Abstract: As LLM-based agents increasingly browse the web on users' behalf, a natural question arises: can websites passively identify which underlying…
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