Unverified50% confidenceFactExact time
PhotoDNA是基于哈希匹配的CSAM检测技术，由微软开发，被Meta、Twitter等平台广泛采用，精确度极高但只能识别已知内容
1
Sources
50%
Confidence
Long-term
Relevance
7/8/2026
First Seen
Sources
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