A computer system infection is a type of harmful code or program that, when carried out, reproduces itself by modifying other computer programs and placing its own code. When this replication is successful, the impacted areas are then stated to be contaminated with an infection.
Viruses often spread by creating a copy of themselves on a user's computer system without the user's understanding or permission. In many cases, viruses will be spread out by email accessories or by files shared on peer-to-peer networks. Once a virus has actually infected a computer system, it can spread to other computer systems on the same network.
special info Some viruses are set to spread themselves in a manner that could trigger severe damage to a computer system. An infection may delete files, fill a tough drive with worthless information, or corrupt system files. In many cases, an infection may even show a message or image that is developed to frighten the user.
Many viruses are reasonably safe, and only trigger small inconvenience to the user. Some infections can be really dangerous, and can trigger extensive damage to computer systems.