QSA, CISSP, CISA, Senior Security & Risk Architect, Avertium
Mr. Kesterson is a Senior Security Architect with Avertium in Phoenix, Arizona. He has more than 40 years of experience in information security. For 21 years he chaired the international standards group that created the X.509 digital signature certificate, a fundamental part of TLS. He has been a QSA since 2011 and a CISSP and CISA. Mr. Kesterson is co-chair of the Information Security Committee in the ABA Section of Science and Technology Law. He is a testifying expert. He wrote authentication code in the 70s.