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Study on LLM de anonymization of pseudonymous accounts

April 3, 2026r/artificial

In r/artificial, a circulated study claims LLMs can de-anonymize accounts across platforms, reinforcing the idea that small details across posts can identify people even when individual posts seem safe.

Study: LLMs Able to De-Anonymize User Accounts on Reddit, Hacker News & Other "Pseudonymous" Platforms
Be aware that it’s not any single post that identifies you, but the combination of small details across many posts.
And consider never posting anything you truly don’t want shared with the world.
r/artificial
privacyriskllm

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