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iPhone Sharing the Photos by Default to Apple (gbhackers.com)

submitted 4 days ago by kid@sh.itjust.works to c/cybersecurity@sh.itjust.works

6 comments fedilink hide all child comments

Titled “Enhanced Visual Search,” this toggle permits iPhones to transmit photo data to Apple by default, raising concerns about user privacy and data-sharing practices.

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[–] TaviRider@reddthat.com 2 points 3 days ago

The 1:1 matching and the porn detection were separate capabilities.

Porn detection is called Communication Safety, and it only warms the user. If it’s set up in Screen Time as a child’s device, someone has to enter the parent’s Screen Time passcode to bypass the warning. That’s it. It’s entirely local to the device. The parent isn’t notified or shown the image, and Apple doesn’t get the image. It’s using an ML model, so it can have false positives.

CSAM detection was exact 1:1 matching using a privacy-preserving hashing system. It prevented users uploading known CSAM to iCloud, and that’s it. Apple couldn’t tell if there was a match or find out the hashes of images being evaluated.

Many people misunderstood and conflated the two capabilities, and often claimed without evidence that they did things that they were designed never to do. Apple abandoned the CSAM detection capability.