Unverified50% confidenceFactExact time
The core technology of Apple's on-device CSAM detection scheme is perceptual hashing, which generates digital fingerprints for images and compares them against a fingerprint database of known illegal content.
1
Sources
50%
Confidence
Long-term
Relevance
11/4/2026
First Seen
Sources
Related Entities
Related Claims
Unverified苹果于2021年推出名为NeuralHash的CSAM客户端扫描检测机制，在用户上传iCloud Photos前本地比对NCMEC数据库73% similarUnverifiedApple's Device Check is a device-level security framework provided by Apple that allows developers to verify whether a device is trusted through Apple's servers and generate non-forgeable device tokens.71% similarUnverifiedModern platforms' device fingerprinting technology no longer relies solely on MAC addresses, but may also combine browser fingerprints, IP addresses, behavioral characteristics, and other multi-dimensional signals for identification.70% similarUnverifiedApple's approach intervenes in the authentication process at the point of capture, establishing a chain of trust from the device side, which is theoretically more reliable than retroactively detecting AI traces after the fact.68% similar
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