I can really only speak to the "web/internet" side of this but http://www.owasp.org/index.php/Top_10_2010-Main http://www.owasp.org/index.php/Top_10_2010-Main c

I can really only speak to the "web/internet" side of this but http://www.owasp.org/index.php/Top_10_2010-Main http://www.owasp.org/index.php/Top_10_2010-Main covers some good material.