Jeff McJunkin is the founder of Rogue Valley Information Security, a consulting firm specializing in penetration testing and red team engagements. Jeff has a long background in systems and network administration that he leveraged into web and network penetration testing, especially involving Active Directory. He has taught dozens of classes in network penetration testing for the SANS Institute and is the author of SANS course SEC580: Metasploit Kung Fu for Enterprise Pen Testing. He specializes in not only finding end-to-end realistic attack scenarios for clients, but also in helping technical staff as well as senior leadership in understanding the attack, its ramifications, detective controls, and assisting in safe remediation. Jeff has competed in many security competitions and has won many of them, along with designing and presenting several iterations of the SANS Core NetWars Tournaments to thousands of attendees.
His personal blog can be found at http://jeffmcjunkin.com/.