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X's Open-Source Algorithm Can Unmask Anonymous Users, Researcher Warns
X's open-sourced algorithm encodes detailed user behaviors into fingerprints enabling the de-anonymization of alt accounts and cross-platform identity mapping, raising privacy concerns.
Summary
AN OSINT researcher discovered that X's open-sourced recommendation algorithm includes a "User Action Sequence" feature that creates detailed behavioral fingerprints from millisecond-level scroll patterns, blocking habits, and interaction timing.