Personal firewall

A personal firewall is like a big wall between you and the rest of the Internet. It's like a guard that sits between your computer and any programs or websites you visit. The firewall looks at the traffic coming and going and looks for anything suspicious. If it finds something that it doesn't like, it will block it and keep it from coming into your computer. The personal firewall helps keep you safe by keeping out viruses, malware, and other dangerous stuff.