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Index/Topics/Client-side Scanning Security Risks

Client-side Scanning Security Risks

The security and privacy risks associated with client-side scanning, including the potential for mission creep, mass surveillance, and foreign or corporate misuse.

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Jan 31, 2026
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What specific technical models for client‑side scanning (CSS) have been proposed and what are their documented security risks?

schemes proposed in recent years fall into a small set of technical models—app‑level hash matching, OS‑level scanning, perceptual‑hash plus ML classifiers, and “narrowed” or voluntary implementations—...