Build your own advanced USB condom

guest · Dec 3, 2020

Build your own advanced USB condom
December 3, 2020
https://www.zdnet.com/article/build-your-own-advanced-usb-condom/

The job of a USB condom is simple: Turn any USB port into a charge-only port by blocking all the data lines, thereby reducing the attack surface for hackers, pranksters, and vandals to cause damage and mayhem.

And they're cheap. If you use random USB ports for charging devices when out and about, I recommend you get one because they're a little insurance in an increasingly chaotic world..
But USB condoms have limitations. But you can build your own super USB condom.
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The other day I came across USBCondom.org, and on that site are plans for three different types of USB condom, [...]
And you can grab everything you need, from the files to get the circuit boards printed (either do it yourself the old fashioned way -- expect a lot of hit and miss initially -- or have a company make them). There's even a full component list of everything you need (which really isn't much, even for the most complicated one!).
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USB Condom

WHY DO I NEED USB CONDOM? WHAT PROBLEM DOES IT SOLVE?
There are a lot of different USB devices in the world that can put your phones, laptops, computers and any device with a USB interface in danger.
You can face such attacks as:

Juice jacking. It is a type of cyber attack involving a charging port that doubles as a data connection. This often involves either installing malware or surreptitiously copying sensitive data from a smart phone, tablet, or other computer device.

USB Killer. It is an adapted device that can fry an entire device. Instead of a flash memory chip, its innards contain capacitors and a DC-DC converter that alters the voltage level of direct current. This is a deadly combination for your average USB port, along with anything attached to it.

BadUSB. It is a type of hacker attack when a little USB stick firmware can be recognized as a keyboard, network adapter or anything else.

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