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Hackers can sometimes mask malicious links as other things, like images or text, that bait you into clicking or are so large you click them inadvertently. If that attachment or link includes a virus, your computer is now infected. If you open an attachment or click a link, your computer downloads that information. However, if an email includes an attachment or clickable link, those could be vehicles for a virus. Somehow, it had to be installed on your machine, and there are three primary ways this happens.Ĭomputer viruses can’t infect your computer through a text-only email. You can’t just turn on your computer and suddenly have a virus for no reason. Three common ways computer viruses spreadĬomputer viruses aren’t random. Hackers use them to gain access into wider systems, cause network disruption and also for financial gains. A virus can cause significant damage to the computer’s software, destroy data or even encrypt data.
#How to protect computer from hackers and viruses code
The malevolent use cases for viruses are only limited to people's imaginations and often the underlying code of a virus can be tweaked and used for many different purposes. The capability to spread from one machine to another is also a fundamental part of their design, where a virus attaches itself to a host program and executes the new code through the host. They're a type of malicious code specifically designed to alter how a computer works. What are computer viruses?Ĭomputer viruses are, unfortunately, a man-made problem. Having an understanding of how they spread is one of the first steps to preventing you from having an infected device. Computer viruses are similar to biological viruses, in that they can spread from one computer to another relatively quickly.