A firewall is a great device that is designed to block any unauthorized access entering a computer system. It acts as a boundary between networks to prevent unauthorized Internet users from accessing a private network. Firewalls are also used to examine all messages coming in or out and blocks any that doesn’t meet the security criteria. According to the lecture, they are the FIRST line of defense in protecting your network from viruses, DOS (Denial of Service) attacks, hacking, and worms. Most importantly, firewalls will help protect your identity as an individual or business.Firewalls are extremely important in the business environment. Businesses need to protect their computers from danger with a firewall because most rely on their computer system on a daily basis. The internet is a large network of computers, making it easy for virus to spread. If your computer is connected to the internet, you are at risk and need the right security software. Also, if your computer is not connected to a firewall, hackers can gain access to personal information and destroy all your businesses important files. I’d rather be safe than sorry.
A great computer source where I got my information is SpamLaws.com. They explain thoroughly and share the benefits of using firewalls.
http://www.spamlaws.com/firewall-importance.html
I also found the illustration of how a firewall works at Wikipedia.com.
http://en.wikipedia.org/wiki/File:Firewall.png
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