An anonymous user posted more than 10K account details on October 1 at pastebin.com.
The list has been removed since it is confirmed that those accounts are genuine. The list of accounts login are starting from A through to B, suggesting there could be additional lists.
Currently it appears only accounts used to access Microsoft's Windows Live Hotmail have been posted, this includes @hotmail.com, @msn.com and @live.com accounts.
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