Computer viruses is a piece of software code that inserts itself into a host which including the operating systems to spread over and harm the users computer. In the internet world, there have around 80,000 viruses and everyday will have 25 new viruses be created. The examples of computer viruses are I Love You virus, AutoRun and etc.
Trojan horses are a program that appears to be useful but actually is the mask destructive program. The example of Trojan horse is Trojan Xombe which is the mask as email from Microsoft. The hackers will access to the computer and steal the passwords.
Spyware is the software that gathers user information through the user’s Internet connection without the user knowledge.
The way to prevent the threats
Nowadays, the computer systems in an organization are very important because when it s attacked by the computer viruses, it will cause the important files to be lost. Therefore the user or organization should take an action to prevent its computer attacked by viruses.
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