sourceHackers are getting a bad rep these days in light of what happened at Sony, and more recently, Lenovo. But legit "white hat" or "good guy" hacking is vital for testing website and device security, plus it's great for modding your setup. This bundle of courses teach the ethical route into hacking.
Starting from scratch, this bundle teaches you penetration testing (that's hacking your own site or device, in case you were wondering…), Wordpress security, working with OS X's advanced admin options, controlling Linux's command line, and scraping data from the web. In other words, all the skills needed to test the digital locks on your valuable stuff.
Currently, these 6 courses — which total 40+ hours of content is going for $49.
a good deal for those who want to hack their own stuff to tighten security holes.