What are the risks of not having a firewall?
If your computer, like most, is automatically set to enable file sharing or to keep network ports open while you are online, you could be susceptible to a variety of attacks. If you don’t have a firewall, which will monitor ports to stop unwanted traffic from slipping through, you have to know how to manually close ports and disable file sharing in order to control risky traffic from coming in to your computer.
