Greg Abelar has been an employee of Cisco Systems since December 1996. He was an original member of the Cisco Technical Assistance Security team, helping to hire and train many of the engineers. He has held various positions in both the Security Architecture and Security Technical Marketing Engineering teams at Cisco. Greg is the primary founder and project manager of the Cisco written CCIE Security exam. Greg is the author of the Cisco Press title Securing Your Business with Cisco ASA and PIX Firewalls and co-author of Security Threat Mitigation and Response: Understanding Cisco Security MARS, and has been a technical editor for various Cisco Press security books.