It's easy to use android botnet work without port forwarding
UFONet - Denial of Service Toolkit
Strong Email & Apache Log Analysis with Active Security Features
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
password safe / manager for linux and windows (and mac ?) via qt
The Desktop Webcam Widget
PHP 404 pages to trap malicious web requests and report abusers
Check some checksum!
Automatic SQL Injection Exploitation Tool
Interesting multithreaded, customizable, simple denial of service tool
Spondulas is browser emulator designed to retrieve web pages for hunti
SecQua tries to quantify the security of a given Information System
Password recovery tool for compressed archives and md5, sha-1/2 hashes
Detects changes to your Website, finds malware
A sort of a virus which secretely copies data from all the usb's
Pombo can help you recover your computer in the event it's stolen.