Matthew Green: photo provenance signing fits low-value transactions like insurance claims

matthew_d_green · x · 2026-09-16

Following up on his skepticism about Apple's ARI photo signing, Matthew Green says it shines for low-value economic transactions: e.g., an insurer wanting car photos without sending an adjuster. Hacking the camera is possible but not worth the cost — unlike high-stakes uses such as "proving" an aliens photo is real.

Related event: Cryptographer Matthew Green questions robustness of Apple's signed 'trusted camera' photo provenance(7 posts)→

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