The debate over CUI is revealing a larger struggle over how government buys technology

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For how useful USB thumb drives are for quickly toting around and copying files from one computer to another, they can be a bit of a security headache. Programs can be loaded on them with all kinds of malware; they can be obscured in some ways that are difficult to detect, and they can be set up to execute certain programs when theyβre plugged in. The general wisdom is to simply avoid untrusted USB devices completely, but that sort of abstinence-only policy rarely works in the real world. If, for some reason, an untrusted USB device absolutely needs to be used, many of these security issues can be mitigated with this tool.
Built by [Novamostra], the device is simple on the surface: itβs a Raspberry Pi Pico mated to a 2-in-1 USB splitter cable. But with the USB Neutralizer software they have written loaded onto the Pico, it automatically destroys the ability of any connected USB thumb drive to load files. The program works by deleting the first and last 34 Logical Block Addressing (LBA) sectors on the drive immediately when itβs plugged in, without doing anything else. This effectively corrupts the drive bad enough to prevent malicious software in the partitions from doing anything, allowing the user to (relatively) safely put the USB drive into their computer and format it for re-use. The code for this tool is also open-source and reviewable on the projectβs GitHub page.
Of course, this isnβt a perfect security solution for all USB attacks. It doesnβt erase or replace the firmware on the drive itself, and although firmware-level attacks are rare theyβre not out of the question for all users, all the time. It also wonβt prevent a malicious physical attack like this high-voltage one, and it may also not stop hidden or obscured partitions or devices programmed for storage and some other nefarious purpose simultaneously, like a USB HID. But still, this solves a great many of the problems associated with getting new drives from semi-untrustworthy sources, like retailers or friends whose computer skills we donβt fully trust.

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Google offers a lot of very useful free office apps, including Google Docs, Google Sheets, Gmail, Google Slides, and more. Many beginners fail to take advantage of the integration between these apps, however. Using the power of Google Drive, you can save yourself a lot of busywork and get things done far more quickly.


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Google offers some very convenient and highly advanced softwareβthere's no doubt about thatβbut it comes at the cost of pervasive user tracking. Not everyone is comfortable with that, and some of those who have yet to ditch Google surely have a nagging sense of unease, knowing their private lives are logged, monitored, tracked, and profiled. You can do something about it, and learning about great alternatives is a start.

Keeping a hard drive on a drawer is probably the most common approach to storing files over the long term. A lot of people don't do it properly, though, to the point I've actually discouraged this practice previously.


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