A firewall prevents malicious software from entering the system, and an antivirus works to remove corrupt files and software from your computer and network. It’s getting easier to install host-based firewalls and protect your computer from malware, cookies, email viruses, pop-up windows, and more. Along with desktop computers, mobile devices are installed with firewalls to protect online activities on the go. Firewalls are security networks designed to protect computer systems and networks from malicious attacks.
An antivirus is a software utility program designed to protect a system from internal attacks such as viruses, Trojan horses, and spyware. A firewall is literally a wall between your device and the Internet that keeps viruses and other malware out, so they can’t access your computer. For example, a firewall will scan all of your incoming data traffic while you are on the Internet to ensure that most such traffic is safe. And if a virus tries to get into your computer, the firewall blocks it Antivirus programs, also called virus scanners, detect viruses and then isolate them so they can do no more harm. Next, you have the option to remove the infected files, so that your entire system is safe again.