Detected / undetected
Also called: UD
Whether an anti-cheat currently recognises a cheat. It is a live status, not a permanent guarantee.
Undetected means the anti-cheat does not currently recognise the cheat. Detected means it does, and using it risks a ban. Status can change with any game or anti-cheat update, so it is always "right now", never "forever".
Check the live status page before every session, especially after a patch. See what happens to your cheat after a game update.