Wallhacking

The term wallhack is used to describe various methods for cheating by changing the properties of walls in a Multiplayer first-person shooter. This allows the cheating player to see things they normally wouldn't. Usually it is for locating the other players on the map. However, in a game like Counter-Strike, certain guns can shoot through walls, rifles in particular. This allows them to see the enemy and kill them, unseen. On Steam, the engine that powers Counter-Strike, the offender may get banned for up to 10 years. However, this rarely happens.

Other types of wallhack include "wallwalk", in which players become able to see through and walk through walls. Sometimes referred to as "ghostmode", this hack enables sneak attacks on anyone walking by the wall, as the player inside the wall is essentialy invisible.

A final, perhaps more malicious, form of wallhack is "noclip". Noclip is a cheat code on many games that disables clipping, allowing the player to fly by holding down the "jump" key, phase through walls, and causes shots to go through the character. This comes in varied forms, some of which are less unfair than others. Although this cheat is theoretically unable to be used on multiplayer, it can be enabled for online use by changing a single line of code. Fortunately, noclippers are incredibly easy to detect, and usually end up banned from the server that they use their powers on.