I like Counter-Strike

How do I report a cheater in Counter-Strike: 2?
When you are In-Game hold TAB right click your mouse to activate your mouse cursor, hover the cursor over the player right click the suspect and click report, check the boxes and hit OK.

How to make sure their account gets reviewed?
Go to the suspects Steam profile, in the upper right of their profile to the right of [Add Friend] click the [...v] click Report Player, click "They are cheating in a game" click "Submit this account for review" in the text box type in more information about how and why you think they are cheating, click Counter-Strike: Global Offensive, click "SUBMIT REPORT"

How do I report a new cheat or cheat website?
If you know of a new cheat (especially private cheats; ones that aren't on a public website), or a new cheat website and can provide links to the site or the actual cheat binaries, please send an email with pertinent information to the following email address:

vacreview@valvesoftware.com

All emails are read and reviewed by the VAC development team.