HTML Purifier : HTML Purifier is a standards-compliant HTML filter library written in PHP. HTML Purifier will not only remove all malicious code (better known as XSS)...
Cilium : Cilium is open source software for providing and transparently securing network connectivity and loadbalancing between application workloads such as a...
OverTheWire: Wargames : The wargames offered by the OverTheWire community can help you to learn and practice security concepts in the form of fun-filled games.
sqlmap : sqlmap is an open source penetration testing tool that automates the process of detecting and exploiting SQL injection flaws and taking over of databa...
A proposed standard which allows websites to define security policies.