ZoneAlarm Firewall is described as 'Blocks unauthorized network access, detects intruders, prevents data theft, hides computers from threats, stops viruses and spyware, offers easy setup, and real-time alerts' and is a Firewall in the security & privacy category. There are more than 25 alternatives to ZoneAlarm Firewall for a variety of platforms, including Windows, Linux, Mac, Android and KDE Plasma apps. The best ZoneAlarm Firewall alternative is simplewall, which is both free and Open Source. Other great apps like ZoneAlarm Firewall are Fort Firewall, Little Snitch, BiniSoft Windows Firewall Control and OpenSnitch.
Windows firewall is only a basic firewall not worthy of protecting your online privacy when doing monetary business online or anything else. Basic firewall basic protection.