The use of "bots" or automated programs, that assist some players in accumulating in-game wealth to the disadvantage of other players.[60] The use of unsanctioned auction sites, which has led publishers to seek legal remedies to prevent their use based on intellectual-property claims.[61] The emergence of virtual crime, which can take the form of both fraud against the player or publisher of an online game, and even real-life acts of violence stemming from in-game transactions.[62]