I have tried to make it easy to find ethical hacking tools by listing them here.
Not sure what ethical hacking is? Get more information here.
Need a place to practice your ethical hacking skills? Try the Arizona Cyber Warfare Range!
Looking for Linux versions that come with much of the software listed here already installed? Try these distributions:
Kali Linux - Designed for penetration testing.
Caine Linux - Designed for digital forensic use.