Firewalls are an essential part of any organization. They provide the most basic protection from intruders on the Internet and help to protect your valuable data. They act as a “locked door” to your organization whereas you are the one who can control whether or not they enter. If not configured properly, intruders can enter with very little effort and can render your network firewall useless.
Your data is the backbone to your organization. Nearly everything else can be replaced, but your data must remain intact and protected. A network firewall acts as a security guard for people trying to enter your network. It allows good data into the network and blocks bad or malicious data from entering.
Today, a network firewall performs more functions than just blocking traffic. There are a variety of additional features, such as: