Part of macOS

`amfid`Code signing checks

○ Leave it

Checks that apps haven’t been tampered with.

What it is

Verifies app signatures when they run.

If you stop it

macOS starts it again straight away. Leave it.

○ Leave it. Part of macOS, or something that starts again by itself. You never need to close these.

From Procession’s guide, in the words the app shows.