Chris Shiflett is a principal of OmniTI, where he leads the web application security practice.

Shiflett is a leader in the PHP community - a popular speaker at industry conferences worldwide, the founder of the PHP Security Consortium, a contributor to the Zend Framework, and an author of the Zend PHP Certification.

A prolific writer, Shiflett is the author of the critically-acclaimed Essential PHP Security (O'Reilly) and HTTP Developer's Handbook (Sams). His writing has also appeared in numerous articles for php|architect and PHP Magazine, as well as a number of other popular books including Programming PHP (O'Reilly) and PHP Cookbook (O'Reilly).