A personal firewall protects users from internet threats by implementing security policies that restrict network communications in and out of a computer. A personal firewall is extremely important for computers with a static IP address or one with a stable IP address, such as with cable modems or DSL.
A personal firewall provides a layer of protection from intruders that will stop or reveal issues before they impact your computer. A personal firewall works behind the scenes to control the flow of data and will alert you if suspicious activities occur.
For example, a Personal firewall is important when,
Most Personal Firewalls are highly configurable so you can easily create security policies to suit your individual needs.
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