General > General Technical Chat
Apple privacy letter (Law enforcement through your phone)
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iMo:
I wonder when Microsoft comes with the same initiative??
 >:D
bd139:
Microsoft already do it. Look up PhotoDNA.
iMo:

--- Quote from: bd139 on August 07, 2021, 10:06:46 pm ---Microsoft already do it. Look up PhotoDNA.

--- End quote ---
On someones local disk?? I doubt so..
bd139:

--- Quote from: imo on August 07, 2021, 10:22:03 pm ---
--- Quote from: bd139 on August 07, 2021, 10:06:46 pm ---Microsoft already do it. Look up PhotoDNA.

--- End quote ---
On someones local disk?? I doubt so..

--- End quote ---

No on OneDrive.
tooki:

--- Quote from: bd139 on August 07, 2021, 04:23:10 pm ---Actually the terms state that on a number of suitable matches (poorly defined), they will manually review the images. That means they will decrypt them at that point in time and it will be an Apple staff member doing it.

--- End quote ---
Except that is not what the documentation says.

From https://www.apple.com/child-safety/pdf/CSAM_Detection_Technical_Summary.pdf

--- Quote ---Only when the threshold is exceeded does the cryptographic technology allow Apple to interpret the contents of the safety vouchers associated with the matching CSAM images.
--- End quote ---
The voucher contains “the relevant image information (the NeuralHash and visual derivative)”. I take the latter to mean either thumbnails or snippets from the image, if that.
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