mrvictory1
be it as something modified and distributed on a unsanctioned channel
Downloading APKs from reputable sources and signature checking can help with this one. Android will refuse to upgrade an app if APK has a different signature anyways.
custom injected by another malicious actor/app
If this is possible there are bigger problems.
Multiplayer game operators have obligation to curb modified clients so their actual paying clients have a levelled playing field.
There isn’t much I can say for that.
Switch to zen kernel, use preempt=full kernel parameter.
Why do you think apps should verify their integrity in the first place? In the case of banking apps or other online apps, the APIs they use should be secure in the first place so a user can’t achieve anything meaningful by modifying API calls. In the case of offline games with monetization, a hacker who makes a pirated APK will also remove the restriction so legitimate players on non standart ROMs will get screwed. In the case of messaging apps with a “delete messages” or “one time view” function ie. Whatsapp, the sender shouldn’t take that their actions will be respected by other clients because modded apps exist and Whatsapp doesn’t care if you install it on a rooted device.