You don't need to be a spook to care about encryption. If you travel with your computer or keep it in a place where other people can put their hands on it, you're vulnerable.

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.

Companies spend millions of dollars on firewalls, encryption, and secure access devices and it's money wasted because none of these measures address the weakest link in the security chain: the people who use, administer, operate and account for computer systems that contain protected information.

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.