AI Can Now Doxx Your Anonymous Accounts? Here's What’s Going On

In brief

• Researchers from ETH Zurich, MATS, and Anthropic built an AI pipeline that matched anonymized Hacker News accounts to real LinkedIn profiles at 90% precision.
• The attack runs on nothing but web search, embeddings, and reasoning models like GPT-5.2, at a cost of roughly $1 to $4 per target—no hacking or data breach involved.
• The paper's authors withheld their code, prompts, and every real…