Think of a firewall as a barrier between the data on your computer and the outside world it is a kind of door lock for your home, office, or vehicle.Įven if you have spyware, anti-virus trackers and keep your computer up to date, someone could still access your information if you do not have a firewall installed. As simple as that (given that you value your online projection). If you have a computer that connects to the Internet, you need a firewall. The firewall is not the same as an antivirus or anti-malware program.įirewall programs protect against internet worms and hacker attacks, while anti-virus programs provide protection against viruses (as the name suggests), and anti-malware applications shield your device against malicious programs. Its purpose is to verify information received from the Internet or a local network and to block or allow access to a computer. Why do you need a firewall?Ī firewall is a software or hardware that prevents hackers and certain types of malware from gaining remote access to a computer over the world wide web. However, before you get your hands on top-notch free firewall programs, it would be best to cover the basics first. Although that is not the case.īut do not worry, you need no extra cash for an additional firewall software there are some best free firewalls you can install.

Many people think the built-in firewall that their Windows, Android, iOS, and other operating systems have is enough.

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