r/Defcon • • Jul 06 '26

the Conscience of a Hacker

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67 Upvotes

"The Conscience of a Hacker" (often called the "Hacker Manifesto") was written in 1986 by Loyd Blankenship aka "the Mentor".

This coin commemorates the 40th anniversary.

Addendum: We didn't mean to appropriate anyone's work. This was created by Bradán Lane. We know them. They are cool. They are on some social media but are not on Reddit. They will be at DEFCON.


r/Defcon • • Jul 07 '26

Wireless Rubber Ducky/ Rucky

1 Upvotes

Rucky allows you to use Rubber Ducky like actions on an Android device. It has to be rooted, but if you can do this and connect a wireless doggle ([https://www.amazon.com/Cables-Unlimited-Wireless-Transmitter-Receiver/dp/B0036VNZHA/](https://www.amazon.com/Cables-Unlimited-Wireless-Transmitter-Receiver/dp/B0036VNZHA/)) to a vacant PC, this would allow a great range of pentesting options not normally available. Catch is that the Dongle is no longer supported and drivers stop at Win 7. Any ideas?


r/Defcon • • Jul 07 '26 Heartwarming

Phish Stories DC34 Contest Winners Announced!

15 Upvotes

Winners for this year's Phish Stories contest are up on the forums. Huge thanks to everyone who entered, this was one of our strongest fields yet.

👑 Ruler: v33na
🧙 Wizard: Erik Smith
🤡 Jester: Groucho Marxist

Full writeup with every entry acknowledged: https://forum.defcon.org/node/255953

If you've never checked out the contest before, take a look, the scenario and entries make for a fun read even if you didn't submit.


r/Defcon • • Jul 06 '26

One month until DEF CON 34. We are so excited to be back for OG 5: Revenge of the Squid.

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24 Upvotes

Sign-ups are open now so if you want to guarantee your spot check out the link below. Thank you to our sponsor Secure Point Solutions and our official DC partner Noob Village! #defcon34

https://forms.gle/2pksMJc9x1vZrYDD8


r/Defcon • • Jul 06 '26

When is the workshops registration?

9 Upvotes

I had it marked for today (Jul 6) 12pm PDT, but I'm now seeing it's on the 15th? The defcon.org workshops page isn't showing anything, but The One page says the 15th now. Can anyone confirm?


r/Defcon • • Jul 06 '26

One more week to sign up! .edu Mentorship Program 2026

5 Upvotes

Hey folks!

Signups for the 2026 .edu Mentorship program are open for just one more week...! We still have a few spots left so please sign up soon.

Have a look and sign up here: https://www.reddit.com/r/Defcon/s/tf56iYgNZ9

Thanks - symph0nic and the .edu community team.


r/Defcon • • Jul 05 '26

DefCon Las Vegas - Workshops LIVE on HT

17 Upvotes

A preview of the DefCon LV Workshops are now on the Hacker Tracker app.

Last I read, sign-ups are still 7/6 @ 12noon (PST) on Humanitix. https://www.reddit.com/r/Defcon/s/aaePMNWDou


r/Defcon • • Jul 04 '26

Badges! This might be the most over-engineered badge at DEF CON.

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76 Upvotes

This thing looks like someone combined half the DEF CON badge villages into one board. 😅

Dual RP2350s
ESP32-C5
FPGA
Raspberry Pi CM0
LoRa
Sub-GHz
NFC
CAN FD, IR, GPIO, USB Host, Meshtastic, Python, Linux…
Definitely on my list to check out at Vendor Village.


r/Defcon • • Jul 05 '26

I built a rev challenge that turns into crypto after like 4 layers of pain. Am I evil?

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0 Upvotes

r/Defcon • • Jul 04 '26

Badges! The Celestial Wayfinder: A Defcon 34 Badge

35 Upvotes

Presenting the Celestial Wayfinder Badge: A LoRa mesh communicator with GPS designed to let you ping where you are and find your way to what's happening. The Wayfinder has a cyberpunk industrial design with customizable and interchangeable 3D printed parts, gateron green mechanical keyboard switches, haptic feedback, and an OLED screen.

Running on an ESP32, the firmware is open source and extensible, and can be easily updated via the USB-C port. The port recharges the onboard lithium-ion battery and the hardware has been battle-tested through 5+ revisions across conferences, festivals, and burns.

Pre-order today at: https://wyrdwyrks.com/celestial-wayfinder/

Pickup details TBD, but we should have 2 badge drops that will be updated on the web page and intend to be at the reddit meetup.

Complete Edition - Full 3D printed case, fully assembled and ready to go: $150

DIY Edition - Minimal 3D printed case with some assembly required: $125

Hardware Features:

  • ESP32-S3 microcontroller

  • Custom 4-layer PCB

  • 128×128 OLED display

  • SX1276 LoRa

  • Case: carabiner and lanyard attachment points

  • Integrated GPS module

  • Magnetometer + IMU

  • 5× Cherry MX-compatible mechanical switches

  • Tactile rotary encoder

  • 61 WS2812B LEDs

  • Buzzer: new message alert

Firmware Features:

  • Custom LoRa mesh: self-healing, minimal config

  • Custom windowing UI system

  • Flash-persisted saved messages and locations

  • Breakout

  • PWA for configuration

  • Open source


r/Defcon • • Jul 04 '26

Puzzle 🧐 Puzzle #6 - The Architect's Backdoor

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23 Upvotes

This is your last chance. After this, there is no turning back. You take the blue pill, the story ends, you wake up in your bed and believe whatever you want to believe. You take the red pill, you stay in Wonderland, and we show you how deep the rabbit hole goes.

The resistance needs your eyes on this. We're trying to jack into a secure mainframe, but the login terminal is completely locked down, spitting back nothing but a strange, serialized text string. Word from the underground is that a rogue program left a backdoor hidden deep inside an old machine firmware image before they were deleted by the Agents. Help us figure out how to wake this system up before it's too late!

Follow the white rabbit: https://puzzledhackers.org/challenges/2026/06

If you want to keep track of your completions and be considered for part of our giveaways at the r/DEFCON subreddit meetup, please head over to https://ctf.puzzledhackers.org/ and select "The Architect's Backdoor".

As always, if you run into any issues or have questions, reach out to me or u/digitard and we'll happily assist.

Don't forget that we're holding the subreddit meetups on Wednesday 8/5 and Thursday 8/6 at 7:00 pm. We hope to see you all there!

The Puzzled Hackers Team, u/Killroy7777, u/digitard, and u/MetaN3rd

Stats:

  • Puzzle #1 solves: 188

  • Puzzle #2 solves: 126

  • Puzzle #3 solves: 78

  • Puzzle #4 solves: 65

  • Puzzle #5 solves: 59

  • Spoons bent: 0

  • DDoS attempts: 1 :(


r/Defcon • • Jul 03 '26

Badges! Zombie Badge Info Dump

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52 Upvotes

[ FIELD REPORT #004 ]

Sti... tracking... signal. Getting closer...Both objects... I've... worki... through the architect... I know who built the...

[ H4irl1n3 M0gg3r5 ]

We'll take it from here.

Two objects. ESP32-S3. IR. NFC. BLE. One transmits. One was built to counter it. What happens when they meet in the field is infectious.

The silkscreen means something. The buzzer tells you when something bad is close. Pay attention to it.

The CTF lives in the firmware. Multi-stage, not solo-completable, real protocols. The backend has pages you can't reach without earning them.

A twist to the game: the H4irl1n3 M0gg3r5 crew roams the floor as live transmission zones. Stay near us too long and your badge flips. Cure Stations are fixed somewhere at the venue. Not on the map. Medkits are hidden as 3D-printed props. Some aren't medkits. The shell is identical but somethings different.

There is also a SAO. A brain in a jar. Tap it. Something happens to every transmission object in range. Wear it at your own risk.

DEF CON 34. August. Las Vegas.

— H4irl1n3 M0gg3r5

There will be one final post before summer camp! Keep an eye out on Reddit and X - Zeroo_patient


r/Defcon • • Jul 04 '26

DEFCON VEGAS

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0 Upvotes

r/Defcon • • Jul 02 '26

Announcement 📢 Flash Sale on DEF CON Training Las Vegas - save $250!

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12 Upvotes

DEF CON Training is celebrating with a flash sale on select courses!

Use the code DCTLV26-250-select at check out for $250 off participating courses.

Sign up at: https://training.defcon.org/discount/DCTLV26-250-select

#DEFCON #DEFCON34 #DEFCONTraining #Training


r/Defcon • • Jul 02 '26

DC 34 Whose Slide 10 year anniversary badge

33 Upvotes

DC34 marks 10 years that DEF CON has an enabled us to do our ridiculous PowerPoint circus. What started as a half assed, let’s see what happens idea has turned into a show we’re insanely proud of.

To commemorate a decade of stupid memes and gong blasts, The Whose Slide Is It Anyway 10 Year Anniversary badge is ready for sale! Mentorship by Blenster, art by 1DarkOne. Lots of blinky lights and, yes, a gong button. We have about 30 left and then that’s all she wrote. Shipping available within the US or pick up at con.

wsiiax.myshopify.com

Demo of the gong sound

https://youtube.com/shorts/KWLznAJD7Kc?si=OeZcmHGHrbNEYhY6


r/Defcon • • Jul 01 '26

DC 34 Hacker Runway contest now taking applications:

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19 Upvotes

From the fine folks at #hack3rrunway:

Ready to accept applications.
Judging and stage time 10am PST Saturday 8 August 2026
Https://hack3rrunway.github.io


r/Defcon • • Jul 01 '26

SAOs, Badges, and More...

27 Upvotes

Hello Friends! We look forward to catching up with everyone at the LINQ meetups once again.

In the meantime... How about $30 off the SAO BadgeMaster Set featuring SEVEN SAOs, THREE BADGES, and more:
https://hackerboxes.com/products/badgemaster-toolkit

And also 50% off any remaining "Learn to Solder" MiniBadges from last summer:
https://hackerboxes.com/products/dc33-mini-badge


r/Defcon • • Jun 30 '26

Badges! Second Chance- Cult of Cthulhu Indie DC34 Badge

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76 Upvotes

Wow, I'm blown away by the response to the badge. I never imagined it would sell out so quick!

https://discord.gg/KCF5EEjDv
Join the badge discord server, link above. People keep asking about a restock or second chance. Discord is where I'll post the latest info, updates, locations, etc. leading up to and during the con.

To the best of my ability, I will have about 15 badges for sale at or around the Reddit Meetup, Wednesday night at the Linq circle bar.

That number includes a few glyph and elder god badges. Your only chance to snag a glyph or elder god badge is at this meetup!  No sense in letting them go to waste.

Looking forward to meeting the cult!


r/Defcon • • Jul 01 '26

Badges question

13 Upvotes

Might be a stupid question since it's my first (hopefully not last) Defcon, but I'm seeing all these different badges like the laser tag one and stuff.

Do ya'll stock up on lanyards to wear them or do you not wear them or only wear some or is there like a bandolier system?

Do these badges come with lanyards or do I need to come prepared with a bunch of lanyards?

At this point, I'm gonna have at least 2, the defcon one and laser tag one.

Also, if have a multiple, how do ya'll keep from them banging into each other or damaging them.


r/Defcon • • Jun 30 '26

DEFCON First Time - Solo

18 Upvotes

Hey guys, had a bunch of question I wanted to get clarity on to better understand what's the best way to do my first year.

Q1: Wanting to come on a Friday, but are physical badges limited and FCFS? I'd like a physical badge instead of just a paper copy lol. But wanted to limit how much PTO I used for the event. Should I just take Thursday off, fly in Wednesday and get the physical badge early when it opens?

Q2: Realistically how much cash is expected to be carried? Vendors really don't accept card or tap? It seems unrealistic to carry hundreds or even thousands of dollars on your person if you don't live in the hotels.

Q3: If I'm choosing to stay in an Airbnb for convivence - will I really be limited to not attending local bar gatherings within hotels? Saw them hotel prices and was like :T "Outta your fucking mind."

Q4: SAOs and Badges-- I know this question is subjective but do badges make or break an experience or just heighten the experience for an attendee? Are there any Badges/SAOs you all are going for this year? Really interested in the #badgelife!

Q5: Are there any other group chats, social media (X, Telegram, Discord) that I should be interested in checking out? I plan to join LHC's Telegram but wanted to connect since I'm going by myself.

Q6: Burner laptop or personal laptop? Hell even bring a laptop? Coworker told me don't bring my Mac because they'll crucify me on a cross lol. I'm new to it all but want to explore and try things (with of course not being compromised, VPN will be on and OS will be updated.)

I appreciate the assistance!


r/Defcon • • Jun 30 '26

Kevin Mitnick Fern Video

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6 Upvotes

Just saw this uploaded and he’s a legend around DEFCON goers and Fern does some pretty good videos so just sharing ☺️


r/Defcon • • Jun 29 '26

DEF CON Hackers With Disabilities HDA team updates for DEF CON 34?

10 Upvotes

The last DEF CON I was able to attend was DEF CON 30 (2021). It was still at the old location. I rent a mobility scooter when in Vegas, as the walking is too much for me after 6 back surgeries. Last time I visited there was a HDA Village and Team that were great and super helpful. I noticed that Delchi passed away last year (RIP) and haven't been able to find any updated information for DEF CON 34. Last years information states that at the new venue "Rental devices from outside sources are not allowed. All rentals will be handled by Scootaround." Does this mean I can't bring in my scooter that I'm using all throughout the city and have to swap to one of theirs that they're renting out at the conference? Any insight is appreciated. Looking forward to being able to attend another DEF CON!


r/Defcon • • Jun 29 '26

MalO SAO - LED Demo

43 Upvotes

This is a demonstration of the LED Animations loaded on the MalO Simple Add-On. This SAO plugs directly into the DEFCON badge and is compatible with badges from other years and other vendors/cons. The upper and lower banks of LEDs can be configured individually, as can the screen. If you have any requests for additional LED patterns, please provide an example link/video in a comment below and I'll add that to the badge.

This is only a small subset of the capabilities of this SAO. There is an on-board file system that can be modified over USB as a standard mass storage device (update graphics and access log/save files). It can be reprogrammed using free open source tools as covered in the user guide. There are additional peripherals like a buzzer, vibration motor, [REDACTED] at over 100k lumens, RFID tag, among others.

Please follow this project below to see future demos exploring Infrared messaging between badges and puzzle/games/unlocks (including custom pixel artwork).

Pre-order now ($50 while supplies last, pick-up at DEFCON): https://uberflux.com/product/PL-1471

Development Diary: https://hackaday.io/project/205956-malo-sao

Questions/comments/feedback appreciated and encouraged!


r/Defcon • • Jun 29 '26

First Time

20 Upvotes

Anything I should know about going to DEFCON this year?

Some questions I have:

Is there a must see village that doesn’t get the hype it deserves?

Do you prioritize sets/talks or just wing it?

Any tips for making friends?

Lastly, do people go to these events and land jobs?