I did read this a lot on the web. With my little experience, maybe i can say that this is not so true. When you analyze a site with the best tools, try different exploits, and do this the best you can, and finally find nothing, it's pretty odd. The only thing that worked for me is to find random targets with dorks (sql injections), such a big script kiddie. And maybe a simple DDOS leak that is not so intellectually interesting.
My main questions is : is it possible to break into any site ? With only computing skills ? What is a good path to follow ? Is this path confirmed and really tested ?
I think that i'm born in the good era, the computing is big. I want to benefit of it and discover the things that the people hide !!!