Malicious code in game. According to the introduction of the mobile game website, World of Warcraft is the first massively multiplayer online role-playing game produced by the famous game company Blizzard Entertainment. The credit card bomb code is malicious code in the game, which will cause the World of Warcraft server to crash or the player client to get stuck. Using the code violates the rules of the game, and the account will be banned or permanently banned.