Just after 5pm Eastern yesterday a Twitter account linked the the Lizard Squad hacker group, Tweeted about H1Z1 being offline. This attack comes after the CEO of Daybreak Games, John Smedley made some Twitter comments about the group.
Less than 10 minuets after Lizard Squads tweet Smedley confirmed that the game was dealing with a DDOS Attack (Distributed Denial of Service). As it sits right now the game is currently still dealing with outages and lag.
Around noon today, Smedley put out another Tweet saying they are still under attack.
Update 2:20pm ET – The official Daybreak Twitter tweeted “continuing to resolve issues“
Updates to follow.