hwk is an easy-to-use application used to attack and discover wireless networks. It's providing various modes such as authentication/deauthentication flood, beacon and probe response fuzzing.
SpaceMonkey is a Web application auditing tool. It can detect bugs or security flaws without using a knowledge database. It uses fault injection technics ('fuzzing') in order to reveal the flaws (SQLinjection, XSS, File inclusion, command execution ).