We don’t know if the cheat/hack is detected or undetected. If it is an old hack, it is likely detected by now. If it is a brand new hack – it might be detected as well. Therefore, the use of all hacks is at your own risk. You risk getting banned from playing on all VAC secured servers.
If you know anything about the current VAC status, please post a comment to the hack. This is also a good place to check if anyone has reported a hack detected.