About I contributes to PHP since 1999: promotion, participation at local user groups, organizing conferences, speaking at conference and writing technical articles.
I'm the co-author of a PHP security book call "Sécurité PHP 5 et MySQL 5" (3rd edition soon). I'm the OWASP Montreal Chapter's Leader.
I'm the president of Parler Haut, Interagir Librement a company that does Security Audit and Penetration Testing for PHP web applications. We also do PHP Security and Audit training.