Firewalls, both hardware and software, protect computers from hackers and other online threats by blocking dangerous pieces of data from reaching the system. While hardware firewalls offer ...

In this Recipe, I'll explain both the options for firewall protection and the differences between hardware and software implementations. By the end, you should be able to point a client to the ...

Free firewalls offer the outbound monitoring that's missing in XP's firewall and off by default (and impractical) in Vista, but third-party tools may create problems of their own. Dennis O'Reilly ...

Pranay Parab is an independent tech journalist based in Mumbai, India. He covers tech for Lifehacker, and specializes in tutorials and in-depth features. A firewall is an essential security tool for ...

I'd like to use a software firewall on my laptop when I'm out at a coffee shop or somewhere, mostly because I don't want some asshat trying to snoop my system. I would use the XP firewall but I don't ...

Microsoft Corp. this week announced an enterprise-level firewall and Web caching technology that the software vendor billed as its first product aimed purely at IT security uses. The new Internet ...

A firewall is a protective system that lies, in essence, between your computer network and the Internet. When used correctly, a firewall prevents unauthorized people from accessing your network. A ...