Blizzard has posted on the World of Warcraft forum that the hammer has seen action recently with a 'large number' of accounts banned for use of bots, third party programs that automate game play. Penalties include removal of gold, PvP currency and gear. The last time the hammer slammed into bot users, accounts were banned for six months. In this latest action, Blizzard has said that repeat offenders will face a longer penalty.
Read the full announcement on the World of Warcraft forum.