Sunbelt Personal Firewall is an easy to use firewall, protecting against attacks from the Internet and local network. Detects Trojan horses as well as spyware. The application uses ICSA technology (certified security technology).

Sunbelt Personal Firewall also checks MD5 signatures created when the application is first launched. Thanks to this it is possible to capture the moment when the original program sending data has changed its structure, i.e. it can be viralised.

Sunbelt Personal Firewall blocks all external IP traffic, automatically hides the computer making it invisible to potential intruders, automatically blocks all pop-up and advertising windows, detects attempts at break-ins with yet unknown tools, the connection report window clearly displays the activity of all programs at a given moment.