Hacker Jeremi Gosney shows off kind of rig that hackers use to crack passwords. Cluster of five 4U rack servers with AMD graphics cards capable of communicating at up to 10 Gbps. On that is run a password cracking program which can churn through 348 billion NTLM password hashes per second. For some perspective, that means a 14 character, LM-encrypted Windows XP password will fall within six minutes. This should make you think twice about the kind of passwords you use. If you don’t have long, random strings in use, hackers will be able to nail you.”]
Source: https://gizmodo.com/the-hardware-hackers-use-to-crack-your-passwords-5966169