VACBanned.com - See the VAC status of any Steam account (Counter Strike, Left 4 Dead, Call of Duty: Modern Warfare 2, etc) With VACBanned, you can see if a SteamID or SteamCommunity ID is VAC banned or not. (Valve Anti Cheat is used by Counter Strike, Half Life, Left 4 Dead, Call of Duty: Modern Warfare 2, etc.)