To Purchase an Item from an Internet Site, You Will

Multiple Choice

To purchase an item from an internet site, you will be asked to provide a credit card number. Because of ________, a computer hacker who intercepts this number as it is being sent to the seller would likely see £D¥$&0PDJLJL, or something equally as meaningless.

A) decoding
B) spyware
C) encryption
D) the firewall
E) malware