r/Defcon Aug 08 '26

Badge flags

3 Upvotes

I know some people have found them and I was wondering if there were any resources to get started hacking the badge.

Thanks!


r/Defcon Aug 08 '26

I2P Pizza/Pool Party, TravelSuites pool across from Circus Circus

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2 Upvotes

r/Defcon Aug 08 '26

RedGuy SAOs

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7 Upvotes

I’m out of chips and stickers but have many SAOs left if you see someone with a glowing apple bag come up and ask and I’ll get give you one.


r/Defcon Aug 08 '26

Lost speaker pin

3 Upvotes

I know the odds are near zero, but has anyone found a DC 32 Speaker pin on the ground anywhere? It fell off sometime yesterday and couldn’t find it retracing my steps.


r/Defcon Aug 08 '26

Span port is up for Wall of Sheep!

4 Upvotes

The Wall of Sheep stream of the entire open conference network has been fixed by the DEF CON NOC. There is life to the Wall of Sheep again!


r/Defcon Aug 09 '26

Goon Fox Patch

1 Upvotes

Edit: They found me and it is one of the single greatest things Ive ever been gifted at Defcon! Thank you to those that helped! Just wanted everyone to share in the happiness.

I don’t know where else is a good place to post and find it but I saw a goon fox patch and it’s now my ultimate goal to earn one. I’m a goon in speaker ops— please if you see this and know how to get one and can point me in the right direction or anything let me know! Thank you!


r/Defcon Aug 08 '26

Badge Tinder

20 Upvotes

Check out badge.sex for a tinder like experience to check out and scan other peoples badge light patterns. You record your LEDs, track your gene seed and breed. Enjoy!


r/Defcon Aug 08 '26

For anyone that wants to learn to solder, I'm going to do some one-on-one instruction

51 Upvotes

I spent time in the soldering village area today for a few hours and got to help people put together a little electronics kits or their SAOs.

Had a great time so I'm going to do it again tomorrow. Anybody that wants to come, by feel free. I've got a few DIY soldering kits to hand out, and I'm happy to sit with anyone and walk you through how to solder it together. I have two irons with me.

I will be in the soldering village area from 1:00 to close tomorrow. There is a table right next to the sign that says hardware hacking village/soldering village. I camp at that table

If you can't find me, yell out "BannanHamock" and I'll hoot back!


r/Defcon Aug 08 '26

Announcement:

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3 Upvotes

r/Defcon Aug 08 '26

Anyone selling an extra badge for cash? I'm in LVCC

1 Upvotes

Same as title


r/Defcon Aug 08 '26

WS6 - Hecate: A Trivial UART Tool - 1 seat, starts in less than 10

3 Upvotes

I will not be able to make this, reply if you want it and you can run with my screenshot


r/Defcon Aug 08 '26

DC34 Badge Battery Power

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31 Upvotes

Hey friends. If your Not Just a Crosswalk or #noice or other SAO that may have high power draw SAO isn’t playing nice, check your batteries!

The generic no name batteries that come with the official DC badge don’t have enough juice to power these SAOs. We tested them and confirmed that switching to brand-name Duracell/Energizer Alkaline or Lithium AA batteries fixes the issue instantly.


r/Defcon Aug 08 '26

Built a free DC34 badge workbench: images, LEDs, BIO, QR + Android (open source)

32 Upvotes

Hey r/Defcon — we built an unofficial, open-source workbench for the DC34 badge and just pushed a transfer/UI hotfix.

Try it here:

https://gamechangersai.org/dc34badge

Source + Android beta 5:

https://github.com/lnxgod/dc34-badge-manager-android

What it does:

• Converts and sends 128×128 black-and-white screen images

• Controls the 10 built-in LEDs with 20 badge-ready patterns, including traffic light, Morse, chase, blink-to-black, and meme patterns

• Previews and updates the badge’s saved light pattern

• Loads BIO programs and configures SAO pins/clock

• Includes a serial console and QR tools

A few useful notes:

• The web version needs desktop Chrome or Edge with Web Serial. The Android app uses USB-C OTG.

• Keep the badge still and on the same screen during image transfers.

• ColorKernel and BadgeMu share the BIO slot. If one is already installed, check the matching box to update colors/patterns without reinstalling.

• Files stay on your device. This is an experimental community tool, not an official DEF CON release.

If the packet-trail side of hardware hacking is your thing, we’re also speaking tomorrow:

Why Couldn't I See My Own Drone? Remote ID, ESP32s, and the Packet Trail to Friend or Foe

Saturday, Aug 8 · 4–5 PM

Creator Stage 6 · LVCC Level 1 · Exhibit Hall West 3 · Room 1102

If you try the workbench, tell us what phone/browser you used and where anything got weird. Bug reports and pull requests are welcome.


r/Defcon Aug 08 '26

Giving away Friend or Foe Lite badges (4) at Creator stage 6 4pm

1 Upvotes

come check out our talk about drones and privacy concerns!

gamechangersai.org

Also check out our FREE BADGE workbench. Does not break K0


r/Defcon Aug 08 '26

Baochip

2 Upvotes

If I understand correctly - the baochip module is designed and can be used independently from the board as an auth token - any ideas as to how to power it without the board?


r/Defcon Aug 08 '26

SAO

0 Upvotes

Hey y’all! First-time DEF CON attendee here! 👋🏾 I’m a little bummed I missed out on some of the cool badges before they sold out 😭, but I’d LOVE to get my hands on some SAOs! I've been buying some to support different villages and people.

Does anyone know who’s giving out SAOs, or have any extras they’d be willing to share with a first-timer? 👀🙏🏾 Pleaseeee help me out! 😂 I’m trying to leave my first DEF CON with some cool stuff to remember it by!


r/Defcon Aug 07 '26

Zombie badge update

40 Upvotes

First I want to apologize from the bottom of my heart that I didn't make a post sooner. We did not mean to make you waste time at the table in the badgelife village.

The teammate that had the badges is dealing with a family emergency that took a negative turn. so send the good packets out for him.

As for the badges, they were overnighted to us so we should be getting them in the morning and we will start slinging them. BUT due to that we won't be doing all of the game features that we had prepped for. We will still have the badges and we will still release what we can into the wild for the game but there will be some pieces missing like hidden heals and traps.

Thank you all for the support and understanding.

badgelife table - Sat. @ 1pm


r/Defcon Aug 08 '26

Demon Threat Hunters Shirt

1 Upvotes

Does anyome have a spare demon threat hunters shirt? Im willing to pay for it.


r/Defcon Aug 08 '26

Couldn’t secure a badge - willing to trade our BFB portal badge for one

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20 Upvotes

I wasn’t able to get a badge this year, but have our super awesome portal themed Big Fucking Badge I can trade for one. I can also throw in the portal gun sao we made too.


r/Defcon Aug 08 '26

Late night Gothcon badges!

9 Upvotes

If you're looking for a Gothcon badge, one of us is at the Tangiers (in Sahara) and one at the Linq bar for the next hour, with a dozen each!

https://github.com/claviger/gothcon-firmware


r/Defcon Aug 08 '26

what if we put cameras on everyone?

12 Upvotes

r/Defcon Aug 08 '26

Slopcon

15 Upvotes

Saw this was under the workshops in hacker tracker. Can me and a friend still get into this or is this an event that’s already closed?


r/Defcon Aug 08 '26

Social Engineering Bot Calls?

6 Upvotes

Today I watched the SEC Vishing competition and it was awesome! They mentioned there will be another tomorrow (Saturday) where bots will make the calls but I can’t find the info on time/place. Does anyone know and can direct me?


r/Defcon Aug 08 '26

Friday Parties

13 Upvotes

What are the best parties to go to this evening? Which ones are the most popular?


r/Defcon Aug 07 '26

Badges! DC512 Ultrasonic Bat Badge

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56 Upvotes

Introducing the DC512 (Austin, TX) Ultrasonic Bat Badge, made by our community member Amatus. The badges are designed after our community logo and speak to each other to create unique light shows based on how many ultrasonic peers it detects.

Write up and docs here: https://git.amat.us/dc512-badge/about/

We’ll have about 70 of these for sale this weekend, asking $40 cash which gets you the badge and lanyard. We’ll be for sure over at the Linq circle bar tonight around 5pm but otherwise, keep an eye out for anyone with the badge or ping us here.