Hacker group claims it brought down Xbox Live this week, pledges to do it again

[Windows Central]

On Thursday, Microsoft's Xbox Live online gaming service was not accessible for many of its users due to a denial of service attack. While it's now back up and running, a newly revealed hacker group which calls itself Phantom Squad claimed responsibility for Thursday's downtime, and claims it will shut Xbox Live and Sony's PlayStation Network service next week as well.

Full story from the WindowsCentral blog...