IronBee: Creating an open source web application firewall Qualys announced IronBee , a new open source project to provide the next-generation of web application firewall (WAF) technology. Led by the team who designed and built ModSecurity, the new project aims to produce a web application firewall sensor that is secure, high-performing, portable, and freely available – even for commercial use. A WAF is typically an appliance, server plug-in, or software-based filter that applies a set of rules to an HTTP conversation in order to monitor and control the movement of data, thus keeping it secure from possible attacks. By customizing the rules of a WAF, many attacks can be identified and blocked. The increasing use of web applications and the transition to cloud computing makes it necessary to deploy WAF technology to protect data and meet regulations such as payment card industry (PCI) compliance. With the launch of IronBee, Qualys is creating a sustainable c...