A computer virus is a program that has the unique ability to replicate. Like biological viruses, computer viruses can spread quickly and are often difficult to eradicate, they can attach themselves to just about any type of file and are spread as files that are copied and sent from individual to individual.

Besides replication, many computer viruses contain payloads that may only display messages or images, they can also destroy files, reformat your hard drive or cause other kinds of damage. If the virus doesn't contain a damage routine, it can still cause trouble by taking up storage space and memory, resulting in the poor overall performance of your computer.

 

Every day new viruses and spyware infect businesses worldwide, some have the ability to spread within hours and affect computers and networks of all sizes. Viruses, worms, Trojans and spyware programs cause serious financial damage to companies through data deletion, loss of productivity, network computer downtime and bandwidth consumption.

 

Email has revolutionised the way all of us communicate, it has rapidly become an indispensable business tool for getting the job done quickly and efficiently. Regardless of this, it is also the largest application used worldwide with so little emphasis on virus protection.