Limitations of Firewalls

Firewalls are essential components of security. Systems ranging from standalone home systems to global IT infrastructures all need firewalls as part of the overall security solution. However, firewalls are not perfect solutions. In fact, when it comes to firewalls, you need to account for several well-known limitations in design and management.

Firewalls are ultimately software code written by humans. In either a host firewall or an appliance firewall, the logic and controlling mechanisms of the firewall are software. Software is simply code that is designed and written by people. Whenever people are involved, the possibility exists that they will make mistakes or oversights. Fortunately, most firewall products are ...

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