Computers are the center of business and personal productivity in the 21st century. Users expect them to work as intended, on time, and without issue. Unfortunately, this is not always the case. Viruses, or any type of malware (viruses are just one of several types of malware - more on that later), can at the least inconvenience users, and at worst cripple an entire business or organization.
When trouble arises, average users may wonder if their computer is misbehaving. They might suspect malware has compromised their system, but don’t know how to confirm their suspicion.