The federal government will not be pleased if you export munitions to foreign countries. Plenty, if you use encryption technology. Need for Privacy Communications between computers generate signals that can be picked up by others. If someone wants to listen to your communications or wants to obtain information that you send to another, there are many ways to intercept it.
Wireless communications continue to grow in importance.
Communication over the Internet and bulletin boards are growing at an astounding rate. Electronic commerce continues to grow in scope on a daily basis. All of these forms of communication create risks that someone can successfully listen in. The need to protect data is everywhere. For example, when you apply for a bank loan, the bank typically requests your credit history electronically.