Ron Henry works as a penetration tester in the US. He enjoys exploit development, security research, and cryptography. He holds the OCSE, OSCP and OSWP designations along with the CISSP-ISSAP and other industry technical certs.
Penetration Tester and Exploit Researcher at Offensive Security
Vulnerability Researcher and Exploit Tester at The Exploit Database
http://www.exploit-db.com/about/dijital1/
http://www.ciphermonk.net/about.php