Platforms assemble comprehensive dossiers about you from pixels on websites you visit, data purchased from brokers, and inferences drawn by AI—creating a parallel profile that exists independently of any account you've opened. This matters because you can't see or challenge what these platforms believe about you, and they use these shadow profiles to target you with ads, set prices, and make lending decisions.
A shadow profile is a detailed data profile that platforms and data brokers build about a person even if that person has never signed up for their service, constructed from information uploaded by your contacts, inferred from your device identifiers, or aggregated from third-party data sources. Social networks, advertising networks, and AI recommendation systems all use shadow profiles to target and track individuals who believe they have opted out simply by not creating an account.
Understanding shadow profiles is critical because it reveals that privacy is not just about what you share directly, and AI auditing tools can help surface evidence of these hidden profiles so you can take steps to limit the data pipelines that feed them.
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