Today we're ecstatic to publish our first demo showing a homemade BusKill Cable (in the prototype 3D-printed case) triggering a lockscreen.

Watch the 3D-Printed USB Dead Man Switch (Prototype Demo) for more info youtube.com/v/vFTQatw94VU

via @[email protected]

In our last update, I showed a video demo where I successfully triggered a lockscreen using a BusKill prototype without the 3D-printed body for the case and N35 disc magnets. I realized that the N35 disc magnets were not strong enough. In this update, I show a demo with the prototype built inside a 3D-printed case and with (stronger) N42 and N52 cube magnets.

What is BusKill?

BusKill is a laptop kill-cord. It's a USB cable with a magnetic breakaway that you attach to your body and connect to your computer.

Watch the BusKill Explainer Video for more info youtube.com/v/qPwyoD_cQR4

If the connection between you to your computer is severed, then your device will lock, shutdown, or shred its encryption keys -- thus keeping your encrypted data safe from thieves that steal your device.

Why?

While we do what we can to allow at-risk folks to purchase BusKill cables anonymously, there is always the risk of interdiction.

We don't consider hologram stickers or tamper-evident tape/crisps/glitter to be sufficient solutions to supply-chain security. Rather, the solution to these attacks is to build open-source, easily inspectable hardware whose integrity can be validated without damaging the device and without sophisticated technology.

Actually, the best way to confirm the integrity of your hardware is to build it yourself. Fortunately, BusKill doesn't have any circuit boards, microcontrollers, or silicon; it's trivial to print your own BusKill cable -- which is essentially a USB extension cable with a magnetic breakaway in the middle

Mitigating interdiction via 3D printing is one of many reasons that Melanie Allen has been diligently working on prototyping a 3D-printable BusKill cable this year. In this article, we hope to showcase her progress and provide you with some OpenSCAD and .stl files you can use to build your own version of the prototype, if you want to help us test and improve the design.

Print BusKill

If you'd like to reproduce our experiment and print your own BusKill cable prototype, you can download the stl files and read our instructions here:

• buskill.in/3d-print-2024-05

Iterate with us!

If you have access to a 3D Printer, you have basic EE experience, or you'd like to help us test our 3D printable BusKill prototype, please let us know. The whole is greater than the sum of its parts, and we're eager to finish-off this 3D printable BusKill prototype to help make this security-critical tool accessible to more people world-wide!

cross-posted from: https://lemm.ee/post/27620066

Stl is https://www.printables.com/model/498730-raspberry-pi-3-model-b-case-with-raspberry-pi-logo/

cross-posted from: https://lemm.ee/post/27376719

I redesigned a dog poop bag holder and printed it out. The original model was good, but I don't like flat over hangs. https://www.printables.com/model/812982-dog-poop-bag-roll-dispenser #3Dprinting

We're happy to announce that we were successfully able to initiate a BusKill lockscreen trigger using a 3D-printed BusKill prototype!

Watch the 3D Printable BusKill Proof-of-Concept Demo for more info youtube.com/v/Q-QjHelRvvk

Via @[email protected]

What is BusKill?

BusKill is a laptop kill-cord. It's a USB cable with a magnetic breakaway that you attach to your body and connect to your computer.

Watch the BusKill Explainer Video for more info youtube.com/v/qPwyoD_cQR4

If the connection between you to your computer is severed, then your device will lock, shutdown, or shred its encryption keys -- thus keeping your encrypted data safe from thieves that steal your device.

Why?

While we do what we can to allow at-risk folks to purchase BusKill cables anonymously, there is always the risk of interdiction.

We don't consider hologram stickers or tamper-evident tape/crisps/glitter to be sufficient solutions to supply-chain security. Rather, the solution to these attacks is to build open-source, disassembleable, and easily inspectable hardware whose integrity can be validated without damaging the device and without sophisticated technology.

Actually, the best way to confirm the integrity of your hardware is to build it yourself. Fortunately, printing your own circuit boards, microcontroller, or silicon has a steeper learning curve than a BusKill cable -- which is essentially just a USB extension cable with a magnetic breakaway in the middle.

Mitigating interdiction via 3D printing is one of many reasons that Melanie Allen has been diligently working on prototyping a 3D-printable BusKill cable this year. In our latest update, we hope to showcase her progress and provide you some OpenSCAD and .stl files so you can experiment with building your own and help test and improve our designs.

Print BusKill

If you'd like to reproduce our experiment and print your own BusKill cable prototype, you can download the stl files and read our instructions here:

• buskill.in/3d-print-2023-08/

Iterate with us!

If you have access to a 3D Printer, you have basic EE experience, or you'd like to help us test our 3D printable BusKill prototype, please let us know. The whole is greater than the sum of its parts, and we're eager to finish-off this 3D printable BusKill prototype to help make this security-critical tool accessible to more people world-wide!

cross-posted from: https://lemmy.world/post/1184281

cross-posted from: https://lemmy.world/post/853004

Hello there, and welcome to the Fediverse! Let's get you started.

This post was created together with many users, intended to help you have an easy start! It has a simple language, and it includes many useful links.

For your first day here

Hello, newbie user! Lemmy is just like Reddit, but better. Ha-ha. Seriously. But let's not overwhelm you for now.

This very neat starting guide was written by our beloved admin, @ruud. To avoid confusion, start reading it from the Quick start guide section.

If you're new to Lemmy, this post will also help you perfectly.

kbin users can check out this amazing starting guide instead. This is also a nice guide.

Finding Communities on Lemmy/kBin

If you finished reading your starting guide, it's time to go find your new favorite communities! Check out these dedicated services: number 1, 2, 3, and 4, and 5! Go have some fun! :D

For your second day here

Hello again! You're less of a newbie now, and you found some amazing communities! We can start talking about the Fediverse. I hope you didn't forget to read the rules for lemmy.world!

kBin.social's rules are in this link.

The Fediverse

You must've realised that we addressed Lemmy and kBin users differently. And what is this Fediverse people keep talking about, anyways?

Lemmy and kBin are two different platforms, and they can perfectly interact with each other! This means that they are a part of the federation. And they are only two members of the vast Fediverse.

What is the Fediverse? video by Framasoft to get a good understanding with visuals!

As a great lemming once said: Fediverse is basically like a group chat, but for websites. This means that federated websites all agree to share their content with each other, constantly, at the same time.

Follow this link to view a list of all Lemmy instances.

Follow this link to open the Fediverse Observer. It is set to show kBin, but you can navigate your way through the site to show any Fediverse platform you'd like.

For your third day here

That's it! What else do you want? Go have some fun and keep learning along the way! ;)