Expert unveils 25-GPU cluster that can crack any eight-char Windows password in less than 6 hours

This 25-GPU cluster can cycle through 350 billion guesses per second and brute force any eight-character Windows password containing upper- and lower-case letters, digits, and symbols in under 6 hours.  That is a total of  95⁸ combinations in less than six hours.  The GPU cluster is Linux based and features 25 AMD Radeon graphics cards controlled in a Virtual OpenCL cluster platform, which allows the graphics cards to function as if they were running on a single desktop computer (normally motherboards, BIOS, and drivers limit the number of GPU cards on a single computer to 8).  Hashcat is used to crack the passwords.

Sources: ArsTechnica
Image Credit: Jeremi Gosney