[prima-facie]

Probably the Security center or the Mi account app. It will send the phone into a reboot loop.

Here's a writeup about packages which are safe to remove in MIUI: https://wooptoo.com/blog/safe-to-remove-packages-miui/

This is from a few years ago but it should still apply today.

[No0op]

Thanks. Both com.miui.securitycore and com.xiaomi.account are marked as unsafe for deletion. So it was somewhat expected to break. If we are talking about right packages, of course.

https://github.com/Universal-Debloater-Alliance/universal-an...