Rick Redman, aka Minga, is the creator of the annual Defcon "Crack Me If You Can" competition. He has been a professional penetration tester since 1999, and has been a password researcher since 2009. He has cracked over 2 million unique NTLM hashes to date. He is a graduate of Purdue University's COAST/CERIAS program. He also suffers from severe celebriphilia (watch out, ErrataRob!)
Cracking Corporate Passwords: Why Your Password Policy Sucks