As a young boy, I was taught in high school that hacking was cool.

We have problems with our physical security, operational security through to management.

When I was in prison, a Colombian drug lord, offered me $5 million in cash to manipulate a computer system so that he would be released. I turned him down.

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.

Steve Wozniak and Steve Jobs founded Apple Inc, which set the computing world on its ear with the Macintosh in 1984.

So what I was essentially doing was, I compromised the confidentiality of their proprietary software to advance my agenda of becoming the best at breaking through the lock.

You can never protect yourself 100%. What you do is protect your self as much as possible and mitigate risk to an acceptable degree. You can never remove all risk.