The growing use of graphics cards as surrogate supercomputers could spell trouble for users of short passwords.Researchers say the growing number of processors on graphics cards will soon make it trivial for them to crack short passwords.A password of seven characters or less will soon be “hopelessly inadequate” they claim.The researchers suggest passwords should be at least 12 characters long to be safe.
http://www.bbc.co.uk/news/technology-10963967