It's kind of interesting, because hacking is a skill that could be used for criminal purposes or legitimate purposes, and so even though in the past I was hacking for the curiosity, and the thrill, to get a bite of the forbidden fruit of knowledge, I'm now working in the security field as a public speaker.

Are hackers a threat? The degree of threat presented by any conduct, whether legal or illegal, depends on the actions and intent of the individual and the harm they cause.

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.

I think it goes back to my high school days. In computer class, the first assignment was to write a program to print the first 100 Fibonacci numbers. Instead, I wrote a program that would steal passwords of students. My teacher gave me an A.

Some people think technology has the answers.

I got so passionate about technology. Hacking to me was like a video game. It was about getting trophies. I just kept going on and on, despite all the trouble I was getting into, because I was hooked.

A company can spend hundreds of thousands of dollars on firewalls, intrusion detection systems and encryption and other security technologies, but if an attacker can call one trusted person within the company, and that person complies, and if the attacker gets in, then all that money spent on technology is essentially wasted.