Undetected, yes , undetectable.. no hack is undetectable.... Personally I have had 3 CS:GO accounts banned for all different reasons and found that the best way to
avoid being banned is to 1) only download cheats from this site if the creator of the cheat has had an account for at least 1 year 2) Only use cheats for 1 day or even less because valve is getting fast at adding signatures to the blocked list, and 3) do not look at people through walls, shoot at people through walls or smoke and never jump shoot with aimbot on.. ever.. follow these steps and you will likely not be taking a VACation any time soon