I’m not saying the apple model is how I want things (far from it), but it certainly has been effective at controlling malware on the platform.
A mac-like system for iOS would work just fine.
https://www.techradar.com/news/phantomlance-malware-breaches...
Dozens of malicious apps infected with the malware are being distributed via the Play Store and alternate app stores such as APKpure and APKCombo, often targeting users to spy on their habits and steal data.
According to security firm Kaspersky, this malware campaign has been live for over 4 years, and is likely the work of the OceanLotus advanced persistent threat (APT) group, thought to be based out of Vietnam.
From GP’s quote directly above.
https://www.cnet.com/news/just-as-critics-feared-fortnite-fo...
Iirc the issue was that they first downloaded a file and then ran it. Thus there was a short window of time where someone can tamper with the file before it's running. Far from being a security nightmare it was a subtle flaw, and fixed quickly.