The dark web is often misunderstood, but it plays an important role in both privacy technology and cybercrime activity. In this episode, Tom Eston speaks with cybersecurity researcher and educator John Hammond about what the dark web actually is and how it has evolved in recent years. The discussion covers underground marketplaces, ransomware leak sites, […]

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Turns out that LLMs are good at de-anonymization:

We show that LLM agents can figure out who you are from your anonymous online posts. Across Hacker News, Reddit, LinkedIn, and anonymized interview transcripts, our method identifies users with high precision ­ and scales to tens of thousands of candidates.

While it has been known that individuals can be uniquely identified by surprisingly few attributes, this was often practically limited. Data is often only available in unstructured form and deanonymization used to require human investigators to search and reason based on clues. We show that from a handful of comments, LLMs can infer where you live, what you do, and your interests—then search for you on the web. In our new research, we show that this is not only possible but increasingly practical.

News article.

Research paper.