>a man [was] arrested on child pornography charges, after Google tipped off authorities about illegal images found in the Houston suspect's Gmail account
https://techcrunch.com/2014/08/06/why-the-gmail-scan-that-le...
In the case of a false positive, that information lives on Google's server where it can be subpoenaed and misused to incriminate you.
We've seen it before with location data.
>Innocent man, 23, sues Arizona police for $1.5million after being arrested for murder and jailed for six days when Google's GPS tracker wrongly placed him at the scene of the 2018 crime
https://www.dailymail.co.uk/news/article-7897319/Police-arre...
With Apple's system, a single false positive would never even leave the device. Multiple images have to be found to match known kiddie porn images before a human review is triggered.
Also, I have huge doubts that Google is reviewing the data to be sure it isn't a false positive before handing it over to the authorities.
They very famously refuse to hire expensive human beings when flawed machine learning algorithms are cheaper.
https://www.macrumors.com/2021/08/09/apple-child-safety-feat...
Citation needed.
Apple has made no such claim and has made it clear that if you turn iCloud photos off, nothing is scanned.
>If users are not using iCloud Photos, NeuralHash will not run
https://techcrunch.com/2021/08/10/interview-apples-head-of-p...
"Apple said that while it does not have anything to share today in terms of an announcement, expanding the child safety features to third parties so that users are even more broadly protected would be a desirable goal."
https://www.macrumors.com/2021/08/09/apple-child-safety-feat...
Do you really think they would go to all this trouble and then say oh you don't want to get scanned? Just turn off iCloud photos.
They have literally said exactly that.
>Q: So if iCloud Photos is disabled, the system does not work, which is the public language in the FAQ. I just wanted to ask specifically, when you disable iCloud Photos, does this system continue to create hashes of your photos on device, or is it completely inactive at that point?
A: If users are not using iCloud Photos, NeuralHash will not run
https://techcrunch.com/2021/08/10/interview-apples-head-of-p...
Apple has merely developed a way to scan the contents of their cloud in a way that keeps the data about false positives off their servers until they are reasonably sure there is an issue. (Multiple images must match known examples of kiddie porn before a human review is triggered)
Scanning on the server itself is way less private.
> With Apple's system, a single false positive would never even leave the device.
"Apple's system" may change overnight and signal every single match, however. They likely will, if they ever start believing that false positives are de facto impossible.
Apple is adding a much more private way to scan your iCloud photos only.
"Google's system" allows your data to be misused by anyone who can get a warrant.
I'm frustrated, too.