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Index/Topics/PhotoDNA technology

PhotoDNA technology

Microsoft uses PhotoDNA and other proactive measures to detect child sexual exploitation and abuse images

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3 results
Jan 31, 2026
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How do automated hashing tools like PhotoDNA contribute to false positives in CyberTip submissions and what safeguards exist?

Automated perceptual hashing tools such as underpin the bulk of platform reports to ’s CyberTipline by matching uploaded images against databases of known CSAM hashes, a process described by and polic...

Jan 30, 2026
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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...

Jan 16, 2026
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How does photoDNA work

PhotoDNA is a perceptual “fuzzy” hashing system developed by Microsoft and Dartmouth to create robust digital fingerprints of known images so platforms and law enforcement can find copies even after c...

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