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Computer security is a vitally important issue in today's society, many of the most critical aspects of our lives computers, and keeping those computers safe is critical. The popularity of the Internet and the amount of time we spend using it made it very easy for computer viruses.
Computer viruses have become such a problem that they now frequently mentioned in both newspapers and television news bulletins in the online media. It is absolutely essential that you take steps to protect yourself against viruses, and you really should be vigilant if you spend much time online.
Virus can be transmitted through e-mail or a file you download, even if you do not install, but they can also present in the files on a floppy especially if it is passed from friend to friend. Many computers get infected every day, and if you do not take precautions you could be next, you lose all your data on your machine. Once gone, it will be irreparable unless of course you had a good idea to regularly back up data!
A computer virus is a small program that the ability to duplicate itself, just like a real virus hence the name, also like a biological virus must have a host to exist. The virus load, the final product of the computer virus, something harmless can be as simple as displaying a message, or something very serious could completely reformat your hard drive. Recent computer virus attacks have led to a serious distortion of both home computers and networks of governments and multinational corporations.
The rise of the Internet is the most critical issue in the increase of computer viruses. Originally viruses were spread as people drive with their friends changed, the nature of this tendency to the spread of computer viruses, but today most people do not tend to use external media such as floppy disks to store data in the same way limit, this has resulted, most viruses spread through the use of email and file sharing on the Internet. All that is required is for you to open an email attachment or downloading a dangerous program and this can give your computer a virus. There are now about fifty thousand viruses in existence, but there are several hundred new threats produced every month.
There are a number of motives that encourage people to write computer viruses. The earliest virus programs were broadly written as pranks or experiments. However, as some programmers began to make their way to learn about systems and the Internet, they wrote viruses just to see what they can do with them. For example, a programmer can simply write a computer virus code to see how far it would spread. Unfortunately it did not stop there, other, more malicious individuals have far more hostile and they enjoy writing computer viruses to other people's websites or damage harming your computer.
An additional reason for getting a computer virus has been produced for large companies to blackmail with the threat of the settlement of a loss of data on their systems. There are many viruses written for revenge. Employees who lose their jobs can sometimes viruses behind on the farm system for undermining the ability of their former employer to do business.
Many viruses are written for profit. The computer viruses can be used to e-mail spam (so the original sender is disguised) to send, allowing your computer to serve as a host illegal data, or other illegal activities. Viruses can also be used to spy on users, pop-ups while the user is not on the Internet, and user data such as bank accounts or credit card numbers to obtain.
Viruses tend to fall into two main types, worms or Trojan horses, just to complicate things trojans, a type of worm.
A computer worm is a self-replicating program, the first worm to widespread attention was the Morris worm that infected many computers and earned the author more than 400 hours of community service and $ 10,000 in fines!
Trojans as the name implies are hidden viruses. This helps the program to get installed in the first place. She then quietly in the background, while the spread of malicious code. This code allows a number of things. It can start right away or can simply install a program that will not start for sometime. Once it is started, remove all files on your computer or infect the computer and try to infect other computers on the network.
There are a number of ways viruses are delivered, and as a Trojan horse is the most common. It usually comes with other pieces of software that a user might find interesting. This software is usually shared through a file-sharing network or downloadable off the Internet. Once the user installs the software, the virus can also be installed.
It is essential that you protect themselves against viruses, this is easily done by installing a good anti-virus program and keeping up to date. There are both free and expensive software applications around that can be set to self-update to protect against viruses.
You can also help you defend yourself by careful where you download files, only use a reputable known source. You should not open email attachments unless you know the sender. Making these security measures will help to protect you against computer viruses.
