I’m just adding a few links today for some websites (that are sand-boxed) you can use to learn or practice different hacking techniques.
***Remember I nor any of these websites are responsible for you using these techniques maliciously. You should not use any of the information to hack any other computers or websites.***
—->>> Hack.me
—->>> Gruyere – Google – Very cool but you really need to understand some Java and HTML.
—->>> P0wnlabs – Mostly Linux based tutorials including forensics, password cracking, etc… (There are only about 3 free challenges. The rest are paid challenges)
—->>> HackingDojo – This has many paid-for tutorials and some blogs with tips & tricks.
These are just a few that I’ve tried recently. I will be adding more soon….