Blizzard Entertainment games experiencing outages on Dec. 14 due to DDoS attack
Multiple games published by Blizzard Entertainment that run through the Battle.net client, including Overwatch and Hearthstone, experienced outages late on Dec. 14 due to a confirmed distributed denial-of-service (DDoS) attack. Intermittent outages and bugs began around 9:45pm CT. A tech support poster on the Overwatch forums, run by Blizzard Entertainment, confirmed that server issues would possibly disrupt players. At the time, the cause of the issues was unknown and the post was limited to Overwatch and, specifically, warning players to avoid competitive mode as to not incur penalties for leavers.