A collection of approximately 270 sets of login details that have apparently been phished via a fake XBox Live login page, appeared on Hacker sites.
The list, 27 pages long in Word format, would allow people to access stolen XBox Live accounts, some of which may have credit card details stored against them.
This list seems to be in circulation on a number of hacking forums; the majority of the accounts were phished between November and December of last year, according to SpywareGuide Greynets Blog.
Despite the relatively long time that's elapsed since the data was 1st collected, a lot of the accounts still seem to be accessible, as users of the hacker sites reports.
The SpywareGuide has passed the stolen data onto Microsoft.