A computer infection is a type of malicious code or program that, when executed, duplicates itself by customizing other computer programs and placing its own code. When this duplication succeeds, the affected locations are then said to be infected with a virus.
Viruses typically spread by producing a copy of themselves on a user's computer without the user's understanding or authorization. In numerous cases, infections will be spread by e-mail accessories or by files shared on peer-to-peer networks. When an infection has actually contaminated a computer, it can infect other computers on the very same network.
the original source Some infections are set to spread themselves in a method that might trigger serious damage to a computer system. An infection might delete files, fill a tough drive with worthless data, or corrupt system files. Sometimes, an infection may even display a message or image that is created to scare the user.
Get the facts The majority of viruses are fairly safe, and just trigger small annoyance to the user. Nevertheless, some viruses can be very harmful, and can cause prevalent damage to computer system systems.