I have found the list of leaked Minecraft accounts everybody’s talking about,
download the three lists here to see whether your account got hacked:
http://bit.ly/1CMA9NP (1.8k) (click the first result of the search in the link)
I am not responsible for the contents of the linked file, nor for what you do with it.
As the list is publicy available, I cannot be reliable for anything about the linked Google result.
I’m not aware of the status of the Minecraft Accounts, whether they are premium or free, nor did I try them out.