Blizzard has announced that they’ve banned several thousand accounts that have been linked with the use of third-party programs (bots) to gain an unfair advantage in the critically acclaimed Hearthstone.
Blizzard also noted that fair play is at the core of the Hearthstone experience, and cheating and botting will not be tolerated. Right now, everyone who got caught botting will be banned until 2015. Blizzard also stated that in the future, accounts found to be cheating will be permanently closed without warning.
You can find out more about Hearthstone and the botting fiasco on the official site.