What is a firewall? What types are there?
A firewall’s job is to not repond when called on by hackers. When another computer attempts to make a connection to your system without your permission, the firewall simply drops the request. This way, the other system doesn’t realize you are there. In addition, should you happen to be found, the firewall will keep those hackers out. Firewalls can be a software program on your computer or an external box, like a broadband router. Both will protect your system. Each one has advantages and disadvantages. A hardware firewall never lets anyone even get to your computer before it blocks hackers. In addition, it isn’t vulnerable to the weaknesses of your computer’s operating system. It usually runs a more secure and simple operating system, so it’s harder for hackers to break in. A software firewall can block outgoing connections from spyware and other programs already on your computer. However, if your operating system is compromised, your firewall may be, too. In addition, by the time hack
