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Index/Topics/PhotoDNA and Hashing Technology

PhotoDNA and Hashing Technology

The use of PhotoDNA and hashing technology for detecting and reporting CSAM, and its limitations and trade-offs.

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3 results
Jan 30, 2026
Most Viewed

How do automated hash-matching tools like PhotoDNA affect the volume and accuracy of CyberTip reporting?

like ’s have dramatically increased the number of suspected routed into ’s CyberTipline by enabling platforms to find and flag known illegal images and videos at scale, but that surge in volume is pai...

Feb 6, 2026

How do PhotoDNA and other hash‑based tools work in cloud storage scanning, and what are common evidentiary challenges?

and related perceptual-hash tools create compact, privacy-preserving “fingerprints” of images that can be matched against a database of known illegal material, enabling automated scanning at cloud sca...

Feb 4, 2026

How do platforms technically detect and flag AI‑generated images for NCMEC reporting?

Platforms rely on a layered technical pipeline to detect and flag child sexual abuse material (CSAM) that may be AI‑generated: first by matching content to known CSAM via hashing tools such as , then ...

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