One of the most important parts of protecting your operating system and personal information is the proper use of internet security software. There are several options available and there are different types of protection that users should have in place for different types of computer usage. A user who spends time downloading music, movies, games, or software from Internet sites will probably need more sophisticated protection than a user who generally does nothing more than E-mail when online. Regardless, it’s good to know what options are available to protect your computer and your information.

One of the most important pieces of internet security software that all users should have is firewall protection. A firewall enables a user to make sure that only approved information can be sent between a home computer or a computer network and the Internet. The Firewall will not allow certain content from the Internet to reach the user’s computer. A personal firewall is used to protect stand-alone, individual computers that are connected to the Internet at all times, through DSL, cable, or some other high speed Internet service. A firewall’s job is to let the user know when information that is questionable is trying to reach the user’s computer.

Another important element of internet security is the use of reliable anti-virus software. One of the most discouraging things that can happen to a computer owner is to have their computer infected with a virus. A virus can be severe or mild, from a mild inconvenience to the complete destruction of your computer. Anti-virus software works in two separate ways. The first is through the use of signature files. When the software reports a virus, a signature file is created, the virus is inoculated, and the inoculation becomes available to identify and fight off that virus in other instances. The second way viruses are dealt with is called heuristics, a process where computers are scanned for programs behaving like viruses, the problem is isolated and the file is destroyed. This is probably the future of anti-virus software, but the process is imperfect at this point.

Most computer viruses are made to affect computers running the Windows operating system. Some users of other operating systems feel that anti-virus software is unnecessary, but the truth is that users of all types of computers and operating systems need to take measure the ensure internet security.

When purchasing anti-virus software, it’s important to use only software that can automatically receive updates. As more virus prevention becomes available, it’s important to make sure that your software stays up to date. Look for software that runs routine checks on your system to make sure no virus slips through the cracks. Finally, look for names that are widely known and respected, such as Norton/Symantec and McAfee, even if you have to pay a few extra dollars to use them. The cost of protecting your computer effectively is much less than the cost of trying to restore or replace lost information and equipment.