What is the point of running this on device? The issue here is now Apple has built and is shipping what is essentially home-phoning malware that can EASILY be required with a court order to do something entirely than what it is designed to do.
They're opening themselves to being forced by 3 letter agencies around the world to do some really fucked up shit to their users.
Apple should never have designed something that allows for fingerprinting of files & users for stuff stored on their own device.
Not really, iOS didn't really have the capability of scanning and reporting files based on a database received by the FBI/other agencies.
There is a big difference when this has been implemented & deployed to devices. Fighting questionable subpoenas and stuff becomes easier when you don't have the capability.
Given iOS being totally proprietary on a heavily locked down device making inspecting even the binary blobs complicated, how can anyone can be sure what it is doing ? Not to mention any such capability missing now is just one upgrade away from being added with no ability for the user to inspect and reject it.
They're opening themselves to being forced by 3 letter agencies around the world to do some really fucked up shit to their users.
Apple should never have designed something that allows for fingerprinting of files & users for stuff stored on their own device.