A is a type of software tool or script designed to disable or circumvent the Valve Anti-Cheat (VAC) system used in games like Counter-Strike 2 (formerly CS:GO ), Team Fortress 2 , and other Source engine titles.

While bypasses are marketed as a way to avoid bans, they carry significant risks:

: Publicly available bypasses on GitHub or forums are often bundled with malware, as they require high-level system permissions to work.

VAC primarily functions by scanning a computer's memory and files for "signatures" of known cheats. A bypass typically interferes with this process in several ways:

: It can intercept the game's communication with Valve's servers, sending fake "all clear" signals even if cheats are active.