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 ...

Like many internet users, I was content to protect my home network behind whatever passed for a firewall on my router, and the software firewalls and antivirus solutions on my individual devices. I've ...

Use UniFi insights to find denied connections and troubleshoot rules, then tune VLANs so cameras and IoT cannot touch sensitive devices.

A firewall is a key cybersecurity feature for protecting a home or office network from malware and other online threats. There are distinct forms and types of firewalls, and some are considered more ...

The importance of firewalls for home and business cybersecurity doesn’t need to be stressed. With around 400,000 new malicious programs being released every day, those who leave their network ports ...

When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years. That’s how I met PCMag’s editorial team, who brought me on board in 1986. In the years since that ...

newsmaker Marcus J. Ranum is a world-renowned expert and innovator on IT security, whose pragmatic approach is lauded by industry peers. Two decades ago he designed and implemented Digital Equipment ...

The firewall is one of the most important security features in a computer environment. In the classic sense, a firewall is set up on an appliance, such as a computer that fulfills just a single, ...

The Tofino OPC Enforcer firewall—part of the Tofino Industrial Security Solution—is designed to lock down any industrial network using the previously hard-to-secure OPC Classic protocol. Using deep ...

Home PC users are starting to catch on that surfing the Net requires a certain level of protection, security software makers say. "Folks are starting to see that firewalls are as important as ...