The folks at SLC Security note:
With the holiday season right around the corner we started noting post on forums with a list of usernames and passwords. We have begun notifying the end users of the leaked information to see if we can verify if they re legitimate.
Of the 5 people that responded so far 3 of the accounts were legitimate and 2 were old login details that were no longer valid so the data looks somewhat dated. We are still notifying individuals of the leaked information.