Some additional information: F-Secure's own firewall solution was removed in Internet Security 2013. It's now only available in business versions. The reason it was removed was because F-Secure thinks that the default firewall in Windows is good enough. And F-Secure's Deepguard(application monitor) will block any internet connection attempts made by unknown applications. What's important to know is that the firewall in Windows XP only has inbound filtering, while Windows Vista and later also has outbound filtering, but the outbound filtering is disabled by default. The reason is it can be quite complicated to set up the outbound filtering to work the way you want it to. The Windows firewall(not XP) is a great firewall that offers both inbound and outbound filtering. The only problem with it is that outbound filtering is difficult to use. This is probably why many users chose to use a different firewall(see the examples from Blackcat). There are programs that can help you with this but I only recommend it to advanced users, for example Windows Firewall Control This program(WFC) provides an interface to create firewall rules and alerts, but it's not a firewall itself. It only communicates with Windows own firewall to make it easier, but you still have to decide yourself what applications, including windows internal applications, to allow for making connections from your computer. Note: F-Secure Deepguard detects WFC as an unknown application, so you need to allow it in order to be able to use it.
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