Computer security assurance is the degree of confidence one has in the security measures.
Computer security is the means of preventing and detecting unauthorized use of the computer network, where prevention measures help you to stop unauthorized users from accessing the network. This is a branch of technology known as information security as applied to computers, where information security means protecting information and information systems from unauthorized use, disclosure, disruption, modification, or destruction.
Viruses usually begin to spread before they are identified, and the only way they are identified is when someone discovers their computer is behaving incorrectly and then they realize they have a virus. Viruses are usually hidden in programs and activated when a program run. They also can be attached to certain other types of files, such as email attachments and video files.
