Valve Anti-Cheat, Counter-Strike Wiki

Valve Anti-Cheat, otherwise known as VAC, is an anti-cheating system released by Valve in 2002. It was used mainly for multiplayer Steam games, including all main titles of the Counter-Strike series. When a player is detected cheating in a VAC-Secure server, the player will be marked for cheating and will get banned from VAC servers permanently. VAC bans are non-negotiable and cannot be removed. To obtain drops in Global Offensive, it is required to play in a VAC enabled server. Drops are unavai

Valve just handed out thousands of bogus VAC bans in CS2 - Jaxon

Counter-Strike 2 Players Express Disappointment as Many of CS:GO's Key Features Disappear : r/Games

Valve Anti-Cheat, Counter-Strike Wiki

Source - Valve Developer Community

Counter-Strike: Global Offensive - Codex Gamicus - Humanity's collective gaming knowledge at your fingertips.

Valve bought 1700 CPUs to target Counter-Strike cheaters

Counter-Strike/Versions - Valve Developer Community

CS:GO VAC Was Unable to Verify Your Game Session - EaseUS

Valve Anti-Cheat, Counter-Strike Wiki

KQLY - Liquipedia Counter-Strike Wiki