DEFCON 23 Badge Hacking

Join in the fun and help hack the 2015 DEFCON Badge

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LoST sent me this picture of the 2015 UBER Badge for DEFCON 23. He told me "Has multiple radioactive isotopes and other goodies :)"

Request to join this project and we can all post info as it becomes available and collaborate to hack the badge.

If you want to join in just request to be added to the team. Feel free to publish your findings as project logs, and group messaging and be used as a shout-out for help and newly uncovered secrets.

Table of Contents:

  • 1 × Badge Translation Mystery is the source of all true art and science

  • Badge solution

    j0z0r pwn4tr0n08/15/2015 at 21:15 1 comment

    Here's a writeup from the winning team on how they did every step. Spoilers if you still wanna solve it for yourself

  • Step One

    j0z0r pwn4tr0n08/08/2015 at 13:58 1 comment

    Page 2 has this listing:



    Hjvyyxabjjung2qbjuraHhafpenzoyr “Ubjqnqqlvfqbvat”

    It's classic Rot13

  • Lanyards and Other Badge Types

    Mike Szczys08/07/2015 at 00:50 2 comments

    I have photographed at least 5 lanyard types (one blurry, sorry). I have also photographed single sides of several other badges.

    UPDATE: Here's more lanyard photos from Sean:

    Press (Back)

    Vendor (Front)

    Goon (Front)

    Human (Front)

    Human (Back)

  • Codes

    murriel08/07/2015 at 00:08 5 comments

    Update: more info here

    Not sure if there is s better way/place to post or dump info but here goes :

    Transcribed from the program defcon times

    Page 2



    Hjvyyxabjjung2qbjuraHhafpenzoyr “Ubjqnqqlvfqbvat”


    Also the binary from the handout today

    01000100 01000101 01000110 00100000 01000011 01001111 01001110 00100000 01010000 01100001 01110010 01110100 01101001 01100101 01110011

    Just converts to DEF CON Parties ;p

  • Badge Photos

    Mike Szczys08/06/2015 at 21:11 2 comments

    Just got the badges and ran into LoST so we have pictures of front and back of Uber badge.

  • First Info

    Mike Szczys08/06/2015 at 20:08 0 comments

    Brian and I haven't gotten through registration yet but here's what we know:

    Badges are an LP record. Does anyone have a recording of what's on there yet?

    Lanyards have glyphs on them again. Well try photograph as many of them and post here as we can.

View all 6 project logs

Enjoy this project?



gcb wrote 08/14/2015 at 21:25 point

at 1:27 you can hear a beer can being opened.

  Are you sure? yes | no

JoyKil wrote 08/08/2015 at 22:15 point

Human Badge is the Shavian Alphabet:

Letter for Letter Replacement (not phonetic)

Human Badge: Mystery is the source of all true art and science. 

Blue Badge: be cool but care

Green Badge: We have no special constitutional powers, unless you consider the extraordinary rights accorded every U.S. citizen by law, in which case we are amply empowered to go about our business. 

  Are you sure? yes | no

Max Litruv Boonzaayer wrote 08/08/2015 at 07:27 point

This is on the vinyl

DTMF tones at the end: 10571057105735266386333266105710571057733539727774727347932738436874262537726

  Are you sure? yes | no

j0z0r pwn4tr0n wrote 08/07/2015 at 18:34 point

There's a lot of the ciphertext solved on this wikia:

  Are you sure? yes | no

Max Litruv Boonzaayer wrote 08/08/2015 at 08:01 point

Seems that it's deleted :(

  Are you sure? yes | no

j0z0r pwn4tr0n wrote 08/07/2015 at 12:17 point

Some of the lanyard text looks like Poe's Goldbug cipher.

  Are you sure? yes | no

Jared Mollenkamp wrote 08/07/2015 at 05:28 point

Isn't there also a Black record for previous Uber winners?

  Are you sure? yes | no

Ryan Nelson wrote 08/06/2015 at 17:46 point

I'm heading for Vegas tomorrow morning.  I'm bringing a record player with usb audio out, it'll be in the HHV.

  Are you sure? yes | no

charliex wrote 08/05/2015 at 15:56 point

blah, you peeps better have a good time, this is the second year in a row i will have to miss defcon because of siggraph.. was only the first time i'd missed in 10+ years, first HHV i missed too, not a happy camper :P

krs just packed and left a few minutes ago for vegas

  Are you sure? yes | no

Ryan Nelson wrote 08/05/2015 at 04:50 point

I'm a volunteer in the Hardware Hacking Village this year (and have been most years, except for 2014) ... I'll be back in there this year, with a lot of tools, a 3D printer, and a 3D scanner.

If the badge is, in fact, non-electronic, I'm happy to help with fabrication puttering on-site at the con.  Find me in the HHV!

  Are you sure? yes | no

Mike Szczys wrote 08/05/2015 at 14:45 point

Nice! Brian and I will certainly be stopping by. If the badge is non-electric I'll have to make sure I get my hands on the DarkNet badge and we can talk about that one too!

  Are you sure? yes | no

admford wrote 08/04/2015 at 20:24 point

Usually DEFCON does an electronic badge on year, and the next they do a non electronic (but still cool) badge. This year's should contain some cypher text and similar to decode (along with other stuff) to get the black badge.

  Are you sure? yes | no

Mike Szczys wrote 08/04/2015 at 20:26 point

Well, not as fun as twiddling bits but I'll take what I can get for entertainment!

  Are you sure? yes | no

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