UnderGND.online
undergndonline.bsky.social
UnderGND.online
@undergndonline.bsky.social
A loose association of hackers and organizers worldwide helping equip communities with the tools and frameworks to organize in a climate of rising authoritarianism and decreasing digital freedoms and privacy.

Website: https://undergnd.online
Some of you had caught us when our website was down for relocation.

Wouldn’t it be funny if our zine about Archival and Data Distribution wasn't on the Internet Archive?

(turns out it is, we just didn't post the link, oops haha)

You can find all of our zines here: archive.org/search.php?q...
January 28, 2026 at 8:13 AM
Using a flash drive that can only be mounted as R/W with authentication is going to be very important going forward as fascist control over information intensifies.

Spread this far and wide.
I had been working on a project for #39C3, sadly manufacturing and shipping got severely delayed and it didn't arrive on time (I cri), but here goes anyway:

This is Deadflash. A flash drive with a ESP32-P4 as a controller. Why bother making a flash drive, and a very expensive one at that? A 🧵
December 31, 2025 at 8:03 AM
Reposted by UnderGND.online
Anyway, if you're interested in the hardware, it is open source!

Check out deadflash's repository at: codeberg.org/bitowlonline...

Firmware repo coming soon
deadflash-hw
A easily concealable flash drive designed for data archival and distribution in hostile environments of censorship.
codeberg.org
December 31, 2025 at 7:17 AM
Reposted by UnderGND.online
As such, I am really excited for the @baochip.com to become available!

It it's in a really tiny CSP package, and has USB 2.0 HS as well as SDIO. I managed to get a devkit for this: github.com/baochip/dabao
December 31, 2025 at 7:17 AM
Reposted by UnderGND.online
At the time this project was conceived in November last year, the ESP32-P4 was the only thing that had USB 2.0 HS, high speed SDIO, which was in a small enough package (10x10 mm QFN) to fit on a flash drive and was reasonably priced. It was on hold until the P4 became generally available.
December 31, 2025 at 7:17 AM
Reposted by UnderGND.online
The purpose deadflash is to allow communities distribute files on the drive, while keeping opportunists from tampering with the contents of the drive.

The goal is not to stop a dedicated attacker (you cannot!) from tampering with the contents, but to keep out 15 minute opportunists.
December 31, 2025 at 7:17 AM
Reposted by UnderGND.online
The threat we are trying to protect against are far-right nuts finding out the location of dead-drops and putting material like child sexual abuse material on the drive and then calling the cops. A whole community could then be in legal hot water for no reason.
December 31, 2025 at 7:17 AM
Reposted by UnderGND.online
One method of distributing information in a way that would be harder to pin down would be to create "dead drops.". A flash drive could be placed a hole in the wall on the side of a building, unlocked utility boxes, etc.

But why not use a regular flash drive for this?
December 31, 2025 at 7:17 AM
Reposted by UnderGND.online
We are seeing a rise of policies designed to restrict access to information online and offline.

People in states like Utah wish to go after "Little Free Libraries" by campaigning to make owners of these libraries criminally liable for not adhering to book bans.
www.themarysue.com/utah-book-ba...
Utah book banners now want to make Little Free Libraries susceptible to criminal charges
Conservative book banners in Utah are targeting Little Free Libraries and want to make the owners susceptible to criminal charges.
www.themarysue.com
December 31, 2025 at 7:17 AM
Reposted by UnderGND.online
tl;dr: It's mounted read-only by default, and mountable as R/W only after authentication; the point being to distribute files in a manner you can prove no one tampered with its contents.

See @undergndonline.bsky.social zines about archival and data distribution: undergnd.online/zine#archiva...
UnderGND.Online
undergnd.online
December 31, 2025 at 7:17 AM
Reposted by UnderGND.online
I had been working on a project for #39C3, sadly manufacturing and shipping got severely delayed and it didn't arrive on time (I cri), but here goes anyway:

This is Deadflash. A flash drive with a ESP32-P4 as a controller. Why bother making a flash drive, and a very expensive one at that? A 🧵
December 31, 2025 at 7:17 AM
Did you enjoy our zines on Archival and Data Distribution, and Vectoralism?

You can find both digital and printable PDFs on undergnd.online/zine

We don't just talk about archival and data distribution, we walk the talk! 😉

They are also available on Internet Archive: archive.org/details/@und...
UnderGND.Online
undergnd.online
December 31, 2025 at 7:37 AM
404: Zines Not Found

Oops, they're going hot huh? - while we go get more printed for #39C3, you may find digital copies at undergnd.online/zine

Oh, and check out that sweet sweet interface ;)
December 28, 2025 at 7:17 AM
What the heck is Vectoralism? How do I start an archive or distribute data? Check out our zines at undergnd.online/zine, or come visit our booth at #39C3: 39c3.c3nav.de/l/undergnd-o...

We have a workshop happening at 3-4pm on #39C3 Day 2, see here for more info: events.ccc.de/congress/202...
December 27, 2025 at 10:58 AM
We've arrived! Check out our #39C3 booth at Assembly, H7, Hall 1 Cloakroom Foyer, Level 1, or see 39c3.c3nav.de/l/undergnd-o... for directions.
December 27, 2025 at 8:42 AM
Who is UnderGND.Online? We are a loose association of hackers and organizers worldwide helping equip communities with the tools and frameworks to organize in a climate of rising authoritarianism and decreasing digital freedoms and privacy. Interested? Learn more at undergnd.online/about
UnderGND.Online
undergnd.online
December 27, 2025 at 7:00 AM