Undoubtedly, you’ve heard about viruses, hacker intrusions, trojan horses, and more that are constantly trying to bring your PC down. Is there a single thing that you can buy, like a hardware firewall ...

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 ...

A firewall is a device that protects you from a possibly hostile network by monitoring and restricting TCP/IP communications based on the policies that you set. The device is traditionally dedicated ...

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 ...

With the growing demand for always-on high-speed Internet access, consumer-grade firewall boxes are becoming as common in computing as modems and mice. The prevalence of these devices makes sense, as ...

Personal firewalls are very ingenious little pieces of software or hardware that protect machines (or in some cases – small networks) from attacks. Two specific implementation situations exist in the ...

Every organization that connects its network to the Internet needs a firewall to protect against intrusions and attacks from "out there." And today's security vendors make firewall products to fit ...

News broke in February 2025 that hackers chained three vulnerabilities in Palo Alto Networks’ PAN-OS firewalls, turning a trusted security gatekeeper into an open door. Thousands of unpatched systems ...