An integrated security solution in Sitefinity that lets customers achieve an enterprise-grade level of protection and covers things like HTTP security headers, redirect and referrer validation, SSL configurations, authentication settings and cookie protection. The Web Security Module is a tight line of defense against diverse types of attacks, including cross-site scripting (XSS), clickjacking, code injection, stealing or modifying data in transit and content sniffing. Read more: Sitefinity and Cross-site Cookies.