How to protect Linux against rogue USB devices using USBGuard Opensource Flare✨

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You deployed a perfect firewall and other network security policies preventing unauthorized access to the user’s desktop computer over a network. However, you still need to block USB device access. We can configure a Linux desktop security policy to protect your computer against rogue USB devices (a.k.a. BadUSB) by implementing essential allow and blocklisting capabilities based on device attributes. For instance, I can define what kind of USB devices are authorized and how a USB device interacts with the Linux system. For example, I can define policy allowing Yubikey with serial number “XYZ” and USB LTE modem with serial # “ABC.” Every other USB device access is denied by default. This guide will cover the following topics:

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