Are you a fan of customizing your Windows experience via themes? If so, you're not alone. While it's true that themes aren't used by a majority of Windows users, they're still highly popular.
If you're creating your own themes, you don't have anything to worry about. The danger lies in downloading theme packs from others, especially if you get them from a source you don't know and trust implicitly.
Clever hackers can now create "poisoned" themes that can be used to steal Windows credentials. Security researcher Jimmy Bayne discovered the new flaw when he stumbled across a poisoned theme capable of tricking unsuspecting users into accessing a remote SMB share that requires authentication.