What is a Firewall?
In simpler terms, firewall protects your computer from unwanted and unauthorized access to your computer, from the outside. When hooked up on Internet, there are many ways by which a hacker or by some unwanted program may access your system and relay some important data, such as your passwords to your bank accounts or some company document you have. To protect yourself from these vulnerabilities you need a firewall. There are many available choices and most of them are paid. The big names such as Kaspersky, Norton etc are basically Internet Security Suites that gives you all round protection. But if you want to save a few dollars, here are some choices. Stay tuned for the next article in the series.
