Intellectual property theft
The Thief, Burglar, Scoundrel, Ninja, or Rogue is a character class found in many role-playing games, including Dungeons & Dragons, Final Fantasy, World of Warcraft and many MMORPGs. Thieves are usually stealthy and dexterous or speedy characters able to disarm traps, pick locks, spy on foes, avoid enemy detection and perform backstabs from hiding.
Thieves are usually nimble melee or ranged combatants, and tend to be focused on dodging attacks rather than withstanding damage. They often attack by dual-wielding daggers or with other small one-handed and/or concealable weapons, relying on speed and rapid strikes rather than sheer damage output. Thieves usually work in small groups or guilds. Thieves usually have a stealth ability, allowing them to disappear from sight, often this is combined with attacking an unaware or flanked opponent to inflict high damage. Although thieves may be of any moral alignment (Good, Neutral, or Evil), they are usually either required or pressured by game design to maintain a Chaotic or at least non-Lawful (i.e., Chaotic or Neutral) ethical alignment, with game design pressures including the diminution or loss of their class-specific abilities should their actions render them Lawful or on the Lawful side of a certain point within the Neutral range.
Thieves are usually restricted to the lighter armors that are easier to move in, leather and the like. While thieves typically cannot practice magic, they might use scrolls or magic items in some games; if neither options are available, then technical gadgets are used. In most fantasy settings, smaller and more agile fantasy races (like elves, gnomes and hobbits) are particularly suited for the thief class.