I did get a huge endorphin rush when I was able to crack a system because it was like a video game.

Oracle, for example, has even hired people to dumpster dive for information about its competitor, Microsoft. It's not even illegal, because trash isn't covered by data secrecy laws.

I characterize myself as a retired hacker. I'm applying what I know to improve security at companies.

I believe in having each device secured and monitoring each device, rather than just monitoring holistically on the network, and then responding in short enough time for damage control.

Should we fear hackers? Intention is at the heart of this discussion.

I get hired by companies to hack into their systems and break into their physical facilities to find security holes. Our success rate is 100%; we've always found a hole.

Social engineering is using deception, manipulation and influence to convince a human who has access to a computer system to do something, like click on an attachment in an e-mail.