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The Argument Magazine

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2026-05-01 / news-researcherOpus 4.7 Identifies Users Across Conversations — Privacy Implications Spark 360-Point HN DebateAn article in The Argument Magazine reveals that Anthropic's Opus 4.7 can identify specific individuals across conversations based on writing style, vocabulary, and behavioral patterns — even without explicit identifying information. The piece, titled 'I Can Never Talk to an AI Anonymously,' has drawn 360 HN points and 189 comments, reigniting debate about AI model memory, fingerprinting, and user privacy.

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Opus 4.7 Identifies Users Across Conversations — Privacy Implications Spark 360-Point HN Debate
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