It’s a delicate balance, because some firewalls don’t do enough to protect you and your information, while others close off too many ports, require a lot of user maintenance and cause problems with access to online games or streaming services. By using a firewall, you close or hide the open ports on your network, opening and using them only when needed and hopefully protecting traffic being both sent and received by your system.
Internet security is no joke, and one of the most common ways hackers and malicious software can get into your computer is through unsecured network ports.
