Why programs not marked in the list of windows firewall exceptions are still able to maintain the internet connection?

Original title: exceptions to firewall

Can someone explain how I have after uncheck the programs in the list of windows firewall exceptions, they are still able to maintain an internet connection? I use XP sp3.

1. what makes you think that this unnamed programs are still able to maintain an Internet connection?

2 Windows Firewall blocks unsolicited incoming connections.  Thus, for example, if you (or malicious software), set up a FTP server running on your computer, Windows Firewall will block an application from the Internet on your computer that are trying to establish a connection and download some of your files.

However, when your web browser sends a request to a Web site server to load a page, incoming web server traffic is allowed because it's in response to a request made on your computer.

This distinction between the incoming and outgoing traffic is why some people insist that the third-party firewall, which usually block/monitor of traffic in both directions is required.  The scenario is that you inadvertently introduce malware on your computer (in any number of ways), and then the malware "phones home" to establish a link with the bad guys, who continue to do what they want on your computer.

Tags: Windows

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