It's hard to say this without sounding like one of those condescending security people, but I highly recommend avoiding that guy. http://attrition.org/errata/c

It's hard to say this without sounding like one of those condescending security people, but I highly recommend avoiding that guy. http://attrition.org/errata/charlatan/steve_gibson/ http://attrition.org/errata/charlatan/steve_gibson/ To balance that with something constructive, if you are already comfortable with software development, I'd suggest checking out these to get started with playing around: https://www.corelan.be/index.php/2009/07/19/exploit-writing-tutorial-part-1-stack-based-overflows/ https://www.corelan.be/index.php/2009/07/19/exploit-writing-... - Part 1, they go to 11. https://google-gruyere.appspot.com/ https://google-gruyere.appspot.com/ - for web app sec