In internal memo, Apple addresses concerns around new Photo scanning features

Re:In internal memo, Apple addresses concerns around new Pho... by speleding on Saturday August 07, 2021 @05:27AM (#28097165)

> A cryptographic hash + file size combo is unlikely to have a false positive within our lifetime

The chance of a "technical" false positive is tiny, but they need to look all false positives: If some joker sends you a lewd picture through WhatsApp, WhatsApp by default saves every picture to your photo library, then you are now on the naughty list.

Good luck trying to explain yourself out of that one.

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Re:In internal memo, Apple addresses concerns around new Pho... by tyingq on Saturday August 07, 2021 @09:02AM (#28098292)

The context there was that a typical CSAM hash like PhotoDNA is NOT a cryptographic hash, but a perceptual one, which DOES have notable false positive issues.

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Re:In internal memo, Apple addresses concerns around new Pho... by ziml77 on Saturday August 07, 2021 @07:18AM (#28097681)

WhatsApp saves all received images to your library? That seems hard to believe. I can't imagine that anyone would appreciate having their personal photo collection cluttered with other peoples photos and all of the meme images that people share.

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Re:In internal memo, Apple addresses concerns around new Pho... by speleding on Saturday August 07, 2021 @08:09AM (#28097987)

It's a setting, called "Save to camera roll". Default is on.

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Re:In internal memo, Apple addresses concerns around new Pho... by ziml77 on Saturday August 07, 2021 @09:40AM (#28098508)

Strange. Is that a desirable feature for WhatsApp users? I must be overlooking a use case that makes that a sensible default.

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