Profiling for Pennies: LLM Agents Reconstruct 90%-Accurate Personal Profiles in 10 Minutes for Under $3

arXiv·high signal

Researchers built IcebergExplorer, demonstrating that LLM agents can reconstruct high-fidelity personal profiles achieving over 90% factual accuracy within 10 minutes at under $3 cost from minimal starting information. They identify six root causes of privacy disclosure across three tiers: explicit, contextually inferred, and deeply aggregated data.