About the Author

Ivan Ristic is a web security specialist and the author of ModSecurity, an open source intrusion detection and prevention engine for web applications. He is the founder of Thinking Stone, which offers products and services related to web application security. Ivan spends his time thinking about web application security, web intrusion detection, and security patterns. Prior to moving to the computer security field, Ivan spent a number of years working as a developer, system architect, and technical director in the software development industry.

He is an active participant in the web application security community. He is a member of the Web Application Security Consortium, OASIS, and the  PHP Security Consortium.