![]() ![]() They can do things like automatically block known bad internet sites. Modern firewalls have more features than just port blocking and ensuring that internet traffic to your home network is legitimate. If you don’t use Internet Relay Chat (IRC), port 193 should be blocked. If you don’t use an FTP service, you don’t need port 20 or 21 open. A firewall will automatically block ports that are not relevant to what you do.If a website or IP address is sending you data you did not request, it is illegitimate. Therefore, the traffic is valid and legitimate. For example, if you went to a website, your computer is requesting data from that website. It tells us whether the traffic coming in is legitimate. A firewall makes sure that traffic that is coming into the network has been requested.What does a firewall do?Ī firewall inspects internet traffic for multiple things. The only thing protecting your device from receiving traffic it did not request is a good firewall. Hackers can view all the devices on a network and send malicious payloads at will once they are in. This can lead a hacker straight to the devices on your home network. ![]() These devices can be tricked into accepting internet traffic that you never requested. What’s worse is that home routers are horrible security devices. When that happens, unsuspecting users become victims. Malware, ransomware and phishing sites are uploaded to websites that get hijacked. Hackers continue to exploit vulnerabilities of major websites like Facebook, LinkedIn, Twitter, and many others. Having good cybersecurity at home should be on everyone’s priority list. The purpose of this article is to share the top 5 free firewalls for Windows in 2022. ![]()
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