Thousands of people reported Christmas Day problems on the Xbox Live and Playstation gaming networks, as a band of hackers took gleeful credit. The networks, which allow users of the popular consoles to play the video games with a wider online community, first crashed on Wednesday evening and the problems persisted into Christmas Day, enraging many users — but especially those powering-up new machines from Santa Claus. A hacker group called "Lizard Squad" claimed responsibility, saying on Twitter that it toppled both networks with so-called distributed denial of service attacks. The tactic involves overwhelming Sony and Microsoft's servers with unexpected — and bogus — user traffic. Read more http://www.nbcnews.com/tech/tech-ne...ation-networks-both-go-down-christmas-n274821