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@floheinstein@chaos.social
2025-12-14 09:13:48

Sticker collection for 39C3 is complete. 500 of each iso8601ultras, "We do not test on animals, we test in production" and a large stack "Nett hier. Aber waren Sie schon mal in Ankh-Morpork?"
Will be distributed in trading boxes/stacks/heaps
#39c3 #stickers

5 Stickers on a wooden table. 3 stickers ISO8601ultras in red, white and blue, 1 green sticker "we do not test on animals, we test in production" and 1 yellow sticker "Nett hier. Aber waren Sie schon mal in Ankh-Morpork? Stadt der tausend Überraschungen"
@gratianriter@bildung.social
2026-01-12 13:37:51

Katika Kühnreich beim #39c3
media.ccc.de/v/39c3-all-sorted

If someone can take care of their Child With
disabilities or chronical deseases for a
lifetime, you can spend two houers a week
doing something for a non-fascist society!
@mot@chaos.social
2026-01-14 18:13:11

⁣⁣⁣⁣⁣.@… coin from #39C3

Video of dotMeow coin front showing "39C3" and a stylized slide button below on a purple circle in the middle (logo of the 39th Chaos Communication Congress). Around the center "dotMeow Foundation" and "NAMES HAVE POWER" is embossed in shiny metal. The border has a slanted knurling. The background is a wooden table surface.
@dassascha@norden.social
2026-01-16 18:47:47

#39c3 #Sanktionsfrei

@johl@mastodon.xyz
2025-12-25 16:36:09

There are more than enough talks at #39C3. It's impossible to make a choice. So here are three more things to make the choice even more impossible.
blog.johl.io/just-three-talks-

@curiousramblings@social.linux.pizza
2025-11-18 08:35:37

Tried to get two tickets for the #39c3. Sold out instantly 🙈
If anyone knows someone... would be eternally grateful, at least as long as my memory lasts.
Would be my first congress.
#39c3ticket

@stf@chaos.social
2026-01-08 02:34:19

watching the infrastructure review of the congress makes me feel super proud of this community, every year, every time. thank you all. <3
#39c3

@tante@tldr.nettime.org
2026-01-06 14:30:21

Watched a talk from #39c3 (the one about right wing dating sites). Was a good talk but it felt weird how casually 'and then I had an AI whip up some shit' was accepted there. I think that wouldn't have been the same a few years ago. Window has shifted.

@anneroth@systemli.social
2025-12-19 16:18:12

In acht Tagen spreche ich im #39C3 Sendezentrum im c’t uplink Podcast mit @… und anderen Gästen über #DigitaleSouveränität.
Habt Ihr dazu in letzter Z…

@mro@digitalcourage.social
2025-12-28 11:15:08

#39c3 Vibes #Fediwall @

@floheinstein@chaos.social
2025-12-07 14:25:12

Merch-Shop ist da. Ich habe bestellt, also erzähl ich es euch nun 😜
#39c3

@jom@social.kontrollapparat.de
2025-12-30 18:44:55

c3-only-things: Short and intense discussion with a vacuum cleaner at the #39c3 late-night shop. Unfortunately, the meowing didn't work. #39c3

The image shows a circular robotic vacuum cleaner placed on a dark, patterned carpet. The robot has been heavily modified and looks experimental. On top of it sits a small rectangular screen displaying a paused video with two people; one person is covering their face with their hands. Several cables and electronic components are connected to the screen and spread across the top of the robot.

The surface of the vacuum cleaner is covered with stickers, labels, and handwritten markings. Visible s…
@stiefkind@mastodon.social
2026-01-08 12:33:14

TIL: Besides UTC, there also is TAI – Temps Atomics International aka International Atomic Time. And well … TAI currently is UTC 37s 🤯
For other interesting things about time, computer time and time protocols, I highly recommend the talk on PTP from last years #39C3:

@daniel@social.telemetrydeck.com
2025-12-29 15:34:56

Wasser ist Leben! #39c3
chaos.social/@cyroxx/115802365

@offenenetze@chaos.social
2025-12-27 17:08:40

Endlich maschinenlesbare Urteile! Open access für Juristen #39c3
media.ccc.de/v/39c3-endlich-ma

@neuhaus@mastodon.acm.org
2026-01-03 07:24:20

Der c’t uplink #podcast vom #39c3 zum Thema Digitale Souveränität ist da! Hört mal rein, was @… @…

@hnnng@chaos.social
2026-01-25 11:24:46

Auf dem #39C3 hat mich Valerie vom Hel Yeah Podcast aus Graz zum Congress interviewt. Heute erschien die Folge: cba.media/755851 (mein Teil ab Minute 21:40)

@groberschnitzer@graz.social
2026-01-07 20:06:36

Hab mir heute mal die Daten auf #OkStupid durchgeschaut, nachdem ich mir den #39C3 Vortrag von @… angeschaut habe.
Ein Nutzer aus

@darkrat@chaosfurs.social
2025-12-27 10:51:07

So now we know why there was a suspicious hole in the #39c3 Fahrplan
GPG 0-Day(s) - Spicy
gpg.fail
17:15 CET

@laf0rge@chaos.social
2026-01-01 11:34:12

One of the [to german or english native speakers] more cryptic signs put up at various locations of #39c3. I had to use cyrillic OCR and a ukranian to english translation software to make sense of it. Very nice, congrats to whoever did that.

@skaverat@skaverat.net
2025-12-31 15:37:17

I bet there are some really annoyed people at Three Letter Agencies after this talk
#39c3

@neverpanic@chaos.social
2025-12-28 21:54:04

Good overview on where to get started to improve #cryptography code by Jade Philipoom at #39c3:

@sjn@chaos.social
2025-12-28 12:42:59

Always awesome to listen to @… at the Chaos Communication Congress! Highlight of the trip as always 😸 #39c3

Cory Doctorow speaking at 39c3
@hanno@mastodon.social
2025-12-29 08:57:04

The two curves you see here should be the same. Obviously, they are not.
If you are at #39c3 and want to learn about the unusual things I found in Greenhouse Gas Emission Databases, come to stage One at 11:00

Two diverging curves showing CO2 Emissions from an ArcelorMittal steel plant
@qbi@freie-re.de
2025-12-30 21:34:56

#Lifehack: Ölt schon mal eure F5-Taste für den Ticketverkauf zum #40C3.
#39C3

@adlerweb@social.adlerweb.info
2025-12-30 12:41:08

Security Ultras #39c3

@anneroth@systemli.social
2026-01-05 16:11:50

📈 Herzlich Willkommen an die vielen Neuen hier! 🪅
Sind von Euch welche wegen des Di-Day's hier? Oder noch wegen #39c3? 📝
(Erklärung: Bei 'Was anderes, nämlich..' ist das so gemeint, dass Ihr dann drunter schreibt, was Euch hergebracht hat!)

@exil_inselette@norden.social
2025-12-31 14:16:56

Davon, dass ich auf dem #39c3 war, können jetzt viele profitieren: Ein Münchner #Freifunk​​​er, der darüber einen Vortrag hielt, brachte ein paar geeignete Router mit, zum Weitergeben. Die Hamburgischen Freifunker haben mir die Software draufgespielt und nun können hier in der Nähe endlich wieder alle ein…

@cark@social.tchncs.de
2025-12-28 15:03:50

Die #tagesschau berichtet über den #39c3 und nimmt den von @… und @…

Screenshot aus dem Tagesschau-Beitrag. Zu sehen sind Marc-Uwe Kling und Linus Neumann.

Bildunterschrift der Tagesschau: Hackerszene kritisiert Macht der Internetkonzerne
Screenshot aus dem Tagesschau-Beitrag. Zu sehen ist ein Notebook-Bildschirm mit der Terminseite. Sichtbarer Inhalt:

C3D2
Riesaer Straße 32
01127 Dresden
Offen für Themenwünsche
14:00–16:00h

Offene Fragestunden.

Bildunterschrift der Tagesschau: Hackerszene kritisiert Macht der Internetkonzerne
@cyrevolt@mastodon.social
2025-12-28 17:57:21

menuconfig but #39C3 theme

@marek@festiverse.de
2026-01-04 15:07:17

@… hat auf dem 39. Chaos Communication Congress (#39C3) einen Aufruf zu einem regelmäßigen digital Independence Day (#diday) gehalten:
An jeden ersten Sonntag im Mo…

Bild mit dem Text "DI.DAY Let's DID it. Jeden ersten Sonntag auf die gute Seite wechsel!" In der mitte ein föhliches Smartphone das sich von seinen Kabeln trennt
@hansaplast42@social.wastedalpaca.wtf
2025-12-30 14:55:29

Hat jemand noch Tickets für diesen Gala-Bau Kongress in Hamburg?
#39c3

@stsquad@mastodon.org.uk
2025-12-31 17:20:05

It's the period between Christmas and New Year so its time for #39c3. This was a nice guide to how #fex_emu works. Their "hack" for dealing with memory ordering vs some game engines does raise an eyebrow or two. I would have liked to know more:

@ladefuchs@electroverse.tech
2025-12-27 10:09:43

Euch allen viel Spaß auf dem #39c3!

@floheinstein@chaos.social
2025-11-19 19:26:54

Noch ein #39c3 Betrüger bei Kleinanzeigen.de.
kleinanzeigen.de/s-anzeige/vie

@anneroth@systemli.social
2025-12-27 17:30:30

Mehrere hundert Menschen beim Talk beim #39c3 der @… zur Kündigung ihrer Konten durch u.a. die @… , es gibt nicht annähernd genug Pla…

@darkrat@chaosfurs.social
2025-12-29 18:59:32

The awesome #39c3 Creature Chronicles overdraw for the chaosfurs assembly is done :blobratheart:
Thanks @… !

A 39c3 group photo overdrawn with fursonas
@johl@mastodon.xyz
2025-12-21 14:29:55

Am Tag drei beim #39C3 am Spätverkauf @… um 19 Uhr: Die @… machen Krach! Yeah!

@laf0rge@chaos.social
2026-01-01 11:28:32

Kabelsalat ist gesund! Equipment von @… und @… auf der Empore von Saal 3 des #39c3

@mot@chaos.social
2025-12-30 11:18:26

Someone took the "Genderwurfstern" creature card from the @… game at #39C3 next to C3 Awareness. The person who created it is very sad and would like to have it back. Please return it or DM me!
Boosts welcome :BoostOK:

Creature card "Genderwurfstern" from the Mystery Hack game at 39C3. The card has an orange background and shows a ninja throwing star in pride colors.
@floheinstein@chaos.social
2026-01-06 09:08:45

I just found this Finnish sticker in my loot from 39c3 - but I don't really get the joke
#finnish #stickers #39c3

White sticker with scribbely handwriting "Me oltiin tehty silein etä tyhmästi tytöile näytety hakkeia"
@stiefkind@mastodon.social
2026-01-02 08:43:17

Dachte mir, schaust jetzt über den Jahreswechsel mal deine YouTube watch later Liste weg. Und habe die Rechnung dummerweise komplett ohne #39c3 und ohne @… gemacht. Zefix.

@daniel@social.telemetrydeck.com
2025-12-30 00:28:07

The adventures of peaches the peach at #39c3

A pink peach plushy plopping in front of the lights
Peaches watching over fairydust the rocket
Peaches translating in Saal 1
Peaches playing doom on an ultrasound machine
@gratianriter@bildung.social
2026-01-23 11:31:02

Wer wissen möchte, wieso Agentic AI grundsätzlich ein Problem bleiben wird, bitte hier entlang (auf englisch):
"AI Agent, AI Spy"
(Meredith Whittaker und Udbhav Tiwari beim #39c3)

Schwarz auf weisse Schrift:

AI Agent, AI SPY

Meredith Whittaker
Udbhav Tiwari
@qbi@freie-re.de
2025-12-27 21:34:26

So langsam fange ich doch an, mich zu ärgern, dass ich kein Ticket für den #39C3 habe. 😉

@adlerweb@social.adlerweb.info
2025-12-30 15:01:14

Chaos Candy Club #39c3

@exil_inselette@norden.social
2025-12-31 11:38:00

Selbst schuld. Ich glaub, ich hab mir ein Souvenir vom #39c3 mitgebracht. Also kein feudales Menü in guter Gesellschaft heute Nacht, sondern Sofa und Schonung.
ich liefere jetzt noch das Dessert aus und dann gibts Ruhe fürs Immunsystem.
🦠

@jom@social.kontrollapparat.de
2025-12-29 18:04:32

In 10 Minuten startet ein #39c3 Musik-Highlight:
events.ccc.de/congress/2025/hu

Bongos und Mikrofone auf einer Bühne
@darkrat@chaosfurs.social
2025-12-27 12:13:41

Want to see some fluffs at #39c3 ?
chaosfurs will do two fursuitwalks on day 2 and 3
events.ccc.de/congress/2025/hu

<…
@anneroth@systemli.social
2025-12-30 21:18:44

Nach vier Tagen #39c3: Was gab's außerhalb davon? Ich habe original nichts weiter wahrgenommen.

@mot@chaos.social
2025-12-29 19:31:20

A few pictures from yesterday night at the #39C3
(License: CC BY-SA 4.0)

A dimly lit large room with some round and square tables. All sorts of light installations re cluttered on the table and in the room: LEDs on strings hanging from the ceiling that form a cylinder on one table, colorful LED stripes and theater lights in the background. The desks are filled with electronic equipment like 3D printers, laptops, power outlets and alike.
A large dimly lit hall with a big rocket ("Fairy Dust") in the front. A toroid-like shape with mirrors like a disco ball is hanging from the ceiling surrounded by several large rings. Powerful light beams shine through sparse fog and the reflections of the toroid mirrors are projected onto the walls. Stairways are decorated with several banners ("OpenWrt", "Trans right are human rights", "Amnesty International" etc.)
A white van with the medical cross logo from Cadus is lit with colorful red/orange/violet lights and medical/technical gear (flight cases, pumps etc.) is on display around the van. In the background blurry light dots and more colorful light is visible in a dimly lit hall.
A hallway in a dimly lit large hall is surrounded by decorated walls. Posters from the 39C3 motto ("Power Cycles") are hung up on the walls, others are decorated with fluorescent tape that shines in neon colors in the blueish/violet UV light. More LED stripes and some spotlights create a colorful atmosphere.
@johl@mastodon.xyz
2025-12-28 20:47:39

An excellent day at #39C3 ended with a wonderful #mnt Community Dinner. Such wonderful people. Maybe there’s hope after all, who knows?

@floheinstein@chaos.social
2025-12-30 04:00:18

Free stickers and CC Mysteryhack cards to scan at my Angel Shift Location E-2-F1
#39c3

5 stacks of stickers. 3 stacks ISO8601ultras, 1 stack "We do not test on animals, we test in production", 1 stack "Nett hier. Aber waren Sie schon mal in Ankh-Morpork?" and two cc mysteryhack cards - git gud caller Daemon and Pizza Pizza Pizza
@laf0rge@chaos.social
2025-12-28 17:34:44

Is there any place at #39c3 that has a microwave for heating up food? I recall from past events that the Angel restaurant provided some, but that seems no longer to be the case. Now i brought homemade food and can't heat it up :/ @…

@daniel@social.telemetrydeck.com
2025-12-29 19:13:54

OH „Ist irgendwann tschunk o clock?“ #39c3

@adlerweb@social.adlerweb.info
2025-12-30 11:37:14

Don't fear the teardown. Be the teardown.
#39c3

@qbi@freie-re.de
2025-12-26 17:54:24

#mongobleed kommt gerade passend für den #39C3.

@anneroth@systemli.social
2025-12-30 21:15:14

Ist Good Night WhiteDate eigentlich irgendwo in der Presse berichtet worden? #39c3

@exil_inselette@norden.social
2025-12-29 13:34:47

endlich auch #39c3.
Jemand Lust auf Treffen?

@darkrat@chaosfurs.social
2026-01-03 06:41:32

the volume of the #39c3 talks opening animation is so f'ing annoyingly loud

@daniel@social.telemetrydeck.com
2025-12-30 00:34:39

Even more adventures of Peaches the peach at #39c3

Peaches (a pink peach plushy) watching a large LED cube
Peaches watching over some lights
Peaches looking at light art installations
Peaches watching the stage
@johl@mastodon.xyz
2025-12-29 12:03:34

I‘m from West Germany, I never learned Russian or even how to read Cyrillic script. But since Russia‘s full-scale invasion of Ukraine in 2022 I must have had so much much exposure that I can now read this important message on a sign at #39C3. Learning through osmosis in times of crisis.

A sign that says „Агент ФСБ, иди на хуй!“ (FSB agent, fuck off!)
@anneroth@systemli.social
2025-12-29 22:07:00

Beim #39c3 wurden gerade mehrere Nazi-Dating-Websites live gelöscht, das war durchaus spektakulär.
Vorher waren die Daten runtergezogen und Recherchen über die Betreiberin angestellt worden.
Infos dazu:

Abfotografierte Leinwand, auf der ein Terminal zu sehen ist, in dem u.a. die Websites whitechild.net, whitedeal.net und whitedate.net inkl Armin-Mail- und Twitter-accounts gelöscht werden.
@adlerweb@social.adlerweb.info
2025-12-30 13:13:01

Das ist dieses Volksmusik zwischen Metal Konzerten spielen um den Zuschauerraum zumindest etwas leer zu bekommen, oder? #39c3

@daniel@social.telemetrydeck.com
2025-12-29 04:01:55

A story in 4 pictures #39c3

The „find my“ app saying my headphones havent been seen for a while and are not with me
The app saying the headphones are 12m away
The app saying they’re 3.4m away
The AirPods, fished from the ball pit
@anneroth@systemli.social
2025-12-30 12:04:49

Is anyone of @… at #39c3 by any chance?

@adlerweb@social.adlerweb.info
2025-12-30 22:00:19

Ein Abbau beschreibt den Vorgang in möglichst kurzer Zeit eine Trennung zwischen Chaos und Betonwüste herbeizuführen und Ersteres in Euroboxen verschwinden zu lassen. Es verbleibt eine trostlose Betonwüste namens "RL" und viel verpacktes Chaos für die nächste Runde. #39c3

@darkrat@chaosfurs.social
2025-12-31 10:40:22

Whoo. No hackfluenza, so far #39c3

Covid and flu test showing negative tests
@anneroth@systemli.social
2025-12-29 12:03:33

Not being niedlich.
#39c3

@floheinstein@chaos.social
2025-12-30 02:48:24

Guten Morgen! #39c3

@daniel@social.telemetrydeck.com
2025-12-28 12:50:35

Good morning #39c3

Hamburgs Congress Center with the tv tower in the background.
@adlerweb@social.adlerweb.info
2025-12-28 19:10:23

"Wie lange soll man schlafen?"
"6-7"
#39c3

@darkrat@chaosfurs.social
2025-12-30 14:51:20

Thanks for a great #39c3
Safe trip home and a good start into 1984

@floheinstein@chaos.social
2025-12-01 03:53:07

Guten Morgen
11/12 von 2025 haben wir hinter uns. Wir haben es bis in den Kongressmonat geschafft! Die wenigen Tage bis dahin mit Jahresend-Stress auf der Arbeit, Geschenke-Kauf und Familien-Problemen stehen wir auch noch durch!
#39c3

@daniel@social.telemetrydeck.com
2025-12-27 20:27:58

Uptime bar! I’ve been living in a downtime world! #39c3

@adlerweb@social.adlerweb.info
2025-12-29 13:59:57

Warum heißt es eigentlich unsortierte Engelshirt-Schlange und nicht Engelshirt-Strauß?
#39c3

@floheinstein@chaos.social
2025-12-30 16:03:38

Wichtige Info für alle Schweizer #39c3 Teilnehmer:innen, die mit dem Zug zurückfahren:
Die Stadler Giruno werden durch ICE ersetzt. Eure reservierten Sitzplätze sind nun ganz woanders. Ihr könnt auf bahn.de eine ne…

Sitzplatzreservierung im ECE5 / ECE 2875
@darkrat@chaosfurs.social
2025-12-30 15:19:03

See you in 360
#39c3 #40c3

See you at
40C3
Day -360
@anneroth@systemli.social
2025-12-27 14:50:51

RE: #39c3

@daniel@social.telemetrydeck.com
2025-12-27 16:59:10

The #39c3 oracle has told me my future

@adlerweb@social.adlerweb.info
2025-12-27 21:42:47

Hackers can turn your washing machine into a Wasserkocher? #39c3

@floheinstein@chaos.social
2025-12-30 10:12:02

@… found my #39c3 @… cards if you want them

My hand holding the cards Pizza Pizza Pizza and Git gud caller
@anneroth@systemli.social
2025-11-21 08:37:13

#39c3 Merch gibt's noch nicht, oder?

@daniel@social.telemetrydeck.com
2025-12-26 16:58:32

Hello #39c3

The Hamburg congress center
@floheinstein@chaos.social
2025-12-30 13:37:11

The queue is moving. Slowly, but unstoppable.
"Today, we watch in Hall One!" #39c3

Leonidas from 300 shouting "Today, we watch in Hall One!"
@daniel@social.telemetrydeck.com
2025-12-27 08:51:48

Met a @… User at #39c3 😊😊😊

@floheinstein@chaos.social
2025-12-31 05:27:38

Damn, I forgot my 8000kicks hemp Laptop case somewhere around @… during teardown. Has anyone seen it?
If so, please write to me so we can find a way I get it back.
#39c3

Hemp laptop case in black with a red tag 8000kicks
@floheinstein@chaos.social
2025-12-30 04:57:41

Aaargh @… is down, we're lost and all gonna die!
#39c3

C3nav no available server
@floheinstein@chaos.social
2025-12-29 19:08:24

Mission accomplished. 25 Engelstunden. #39c3

The back of an angel shirt with power cycles text and clouds with on/off switches. Or clown noses.
@floheinstein@chaos.social
2025-12-28 01:35:58

TIL: the #39c3 DECT network also covers at least part of the Radisson hotel. I was just woken up by a call from someone to my DECT.
Have to switch it off next night.
Well, not much harm done, my alarm would have woken me up soon anyway for my Angel shift at 04:00 in the Cloakroom Lost and Found.

@floheinstein@chaos.social
2025-12-30 09:38:48

I distributed a few hundreds of my stickers ISO8601ultras, "We do not test on animals, we test in production" and "Nett hier. Aber waren Sie schon mal in Ankh-Morpork?" in almost all sticker boxes around #39C3 this morning.
If you still don't find one, write to me, we can meet between talks.

Sticker we do not test on animals, we test in production
Sticker Nett hier. Aber waren Sie schon mal in Ankh-Morpork? Stadt der tausend Überraschungen
3 stickers ISO8601ultras in red, white and blue
@floheinstein@chaos.social
2025-12-29 13:32:53

Someone really doesn't like their Bändchen checked...
ACAB = all creatures are bändchened!
#39c3

Paper on the wall saying "ACAB includes ticket control" with symbols of pretix, wristband and a paper ticket all striked through in red.
Below that the text WAKE UP now sheeple.
Oh yeah, and all the text is in Comic Sans
@floheinstein@chaos.social
2025-12-30 12:40:57

Well that's an easy way to distribute the rest of stickers: I left a carton box about 20*20*20 cm somewhere, with the rest of my stickers. It has my name and my DECT number on it.
If you find it, please share its content. Or call me. #39c3
Update: found it. And as intended it's almost empty

Almost empty sticker box
@floheinstein@chaos.social
2025-12-29 09:53:07

Looking for someone who trades the original Firefox ears for Mate (a bottle per furry ear) or stickers (up to 25 of mine) #39c3

@floheinstein@chaos.social
2025-12-29 03:19:23

Guten Morgen Hamburg!
#engelschicht #39c3