Dear readers, I appear to have set a Paranoid Penguin record—six months spent on one article series. (It has consisted of five installments, with a one-month break between the second and third pieces.

A security researcher has found flaws with two of PureVPN's Linux clients The impacted apps may leak IPv6 traffic under certain circumstances and interfere with local firewall settings PureVPN has ...

Last month, I kicked off a series of articles on transparent firewalls, beginning with a brief essay on why firewalls are still relevant in an age of Web applications and tunneled traffic. I also ...

After using several security tools on Windows, I'm convinced the built-in firewall is solid. Despite this, it doesn't feel like something made for me. Even though it runs quietly, is rarely in your ...

Simone Margaritelli, the VP of Research at Zimperium, has created a Linux port of Little Snitch, a wildly popular macOS firewall application. Named OpenSnitch, the Linux port works on the same ...

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