The Barracuda Web Application Firewall protects Web sites and Web applications from attackers leveraging protocol or application vulnerabilities to instigate data theft, denial of service, or defacement of an organization's Web site. Unlike traditional network firewalls or ...The Barracuda Web Application Firewall protects Web sites and Web applications from attackers leveraging protocol or application vulnerabilities to instigate data theft, denial of service, or defacement of an organization's Web site. Unlike traditional network firewalls or intrusion detection systems that simply pass HTTP, HTTPS, or FTP traffic for Web applications, the Barracuda Web Application Firewall proxies this traffic and inspects it for attacks to insulate Web servers from direct access by hackers.