Why do you need data to back this up? Having applications go through zero review process will be far worse than even the horrible review process Apple has in now. If I can just release my malicious iOS app on my website without Apple even reviewing it, that is all the proof alone that you need.
The problem is you can do that right now. Users can surf to malicious websites and be infected or fall for scams on their iDevises right now, click infected email links or receive a SMS string click YouTube comments, discord messages or any number of vectors of attacks right now on their device.
the XcodeGhost affected close to 200 million users and 4.000 official apps. And was discovered by a random Chinese developer and not apple. And the evidence points to it to have been active for 6months before it’s discovery by apple.
And it completely depends on what changes are made.
Probably will stay about the same with other stores having a review process.
- alternate payment methods
In EU it will have no impact even with high usage. Payment methods are highly regulated and payment verification is needed for online transaction by ID, code or other security means.
USA probably a big problem considering the non existent safety standards or regulation in place.
Probability the highest impact but limited to limitations of iOS security and lack of root access. But minimal amount of user will use it
And then we need to compare this to android that already have all these. If little to no impact happen to users compared to the freedom and increased competition between developers, payment solution to apple and their store/ IAP solution. It might be hard to justify.
If apple right now have equal amount of fraud and malware as android ( we don’t know untill apple shows us)
This would show that apples review process have little to no impact.
If their data shows a drastic difference to android, this would show that apples review process have a drastic security effect.
because if this the effect of apple’s review process, then it’s effectively just for show and not security