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📢 DEF CON Training is now accepting course submissions for 2027! Submit today to teach alongside the #DEFCON community around the world! For details, see application. The deadline is Nov. 13, 2026. Apply today 🔗: forms.cloud.microsoft/r/z2f4igJPuu Questions? training@defcon.org

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int_ijk @tbrunner.bsky.social · 06/10/2026

next saturday night, 8pm los angeles time, the best of joshua tree and the los angeles river in one sitting. a joy for angelenos!

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DEF CON @defcon.bsky.social · 06/10/2026

#defconmovienight Spooky season entry #2 is 'Them' from 1954. It's quite possibly the best ant-based monster movie in cinema history. Join us Saturday 8pm PDT in the movie-night-text channel of the discord (discord.gg/defcon). We'll be nervously guarding our picnic goodies. #defcon

Movie poster for 'Them' featuring huge scary ants.

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Thorin Klosowski @thorinklosowski.com · 01/10/2026

last year we did a little made up holiday called Opt Out October that was all about taking control of your data across platforms. This year we decided to talk about how many excellent alternatives to the products made by big tech are out there www.eff.org/pages/welcom...

eff.org

Welcome to Opt Out October. Let’s Take Control of Our Data and Our Devices

Big tech companies are hell-bent on taking away our agency and forcing us to use their surveillance-based services, apps, and devices. It’s hard to fight against, and it often feels much easier to giv...

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DEF CON @defcon.bsky.social · 01/10/2026

#defconmovienight kicks off the Spooky season this Saturday 8pm PDT with ‘The Innocents’ from 1961. It’s based on ‘The Turn of the Screw’ and stars Deborah Kerr. Join us in the movie-night-text channel of the discord (discord.gg/defcon) for an eerie good time.

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DEF CON @defcon.bsky.social · 30/09/2026

DEF CON Training is headed back to Bahrain on November 9-11, at the Wyndham Grand Manama. The course line up has a bit of everything - AI, threat hunting, cryptocurrency, cloud infrastructure, and more! Browse the course catalogue and secure your seat today: me.shop.defcon.org/collections/...

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DEF CON @defcon.bsky.social · 24/09/2026

All systems are go for DEF CON Singapore 2! We’re excited to announce our return to Singapore 4-6 March, 2027. We’ll be opening online registration soon. Please save the date and follow us here and at defcon.social for all the latest news. See you soon. #defcon #defconsingapore #DCSG2

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DEF CON @defcon.bsky.social · 22/09/2026

DEF CON Movie Night concludes our short cinematic exploration of the San Fernando Valley with a film from the Valley's poet laureate, Paul Thomas Anderson. Join us at 8pm PDT 9/26 in the movie-night-text channel of the DC discord (discord.gg/defcon) for 'Magnolia.' Next week, spooky season begins.

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Xeno Kovah @xenokovah.bsky.social · 21/09/2026

Arbitrary achievement unlocked! "Filling 2 pinboards with badges!"😄 Achieved after this year's @defcon.bsky.social, but I'm hoping that in the future I can also track this achievement via the accomplishments gamification mechanism at #OST2 with all these conferences sponsoring it!🤞🤝😊

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Gunnar Hillert @hillert.bsky.social · 10/09/2026

This #AI talk by #BruceSchneier at @defcon.bsky.social was superb! The usage of LLMs to find loopholes in the tax code, our political institutions etc. was quite eye-opening. Our institutions have to adapt fast. I am a little concerned about that… www.youtube.com/watch?v=eEBv...

youtube.com

DEF CON 34 - Hacking AI - Bruce Schneier

YouTube video by DEFCONConference

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disclose.io @disclose.io · 12/09/2026

dnssecuritytxt census, Sep 7: 216 domains publish a security contact in DNS, net +20. New: one.com + 19 more group.one brands (incl. WP Rocket, Imagify), @defcon.bsky.social's defcon.social, Concordia Univ. of Edmonton, Skatteverket, Steno (legal tech). One TXT record: dnssecuritytxt.org

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Gunnar Hillert @hillert.bsky.social · 18/09/2026

One of the best technical talks I have ever seen—period. Cliff Stoll is killing it in “Stalking the Wily Hacker: 40 Years Later” at #DefCon34 @defcon.bsky.social. It totally made my day! www.youtube.com/watch?v=6560...

youtube.com

DefCon 34 - Stalking the Wily Hacker: 40 years later - Cliff Stoll

YouTube video by DEFCONConference

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STΞVΞ HOLDΞN @sdholden.bsky.social · 05/09/2026

Clifford Stoll's @defcon.bsky.social 34 (2026) talk (titled: "Stalking the Wily Hacker - 40 years later") was awesome >> highly recommend >> easily in my Top Ten of all time (this was my 17th DEF CON) www.youtube.com/watch?v=6560... #so_happy_I_got_a_seat

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DEF CON @defcon.bsky.social · 08/09/2026

Friendly Reminder: While supplies last, you can get the Baochip-enabled #DEFCON34 badge in the DC store. It's our best badge yet - a fully inspectable open source platform you can use as a security token long after you've played through the conference goodies. Shop.defcon.org.

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DEF CON @defcon.bsky.social · 03/09/2026

More early release goodies for you! The live music, pictures, short videos and a bunch more content from DC34 are up on media.defcon.org. And in that spirit, here’s another talk - Bruce Schneier’s presentation ‘Hacking AI’. youtu.be/eEBv0STiYhI Enjoy, and pass it on. #defcon #defcon34

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DEF CON @defcon.bsky.social · 03/09/2026

For your information: The fine folks of DCG Easton (PA) are running a live presentation RIGHT NOW called 'What we did on our hacker summer vacation' which will include their debrief of #defcon34. If you've got the time, show them some love. www.youtube.com/watch?v=MleD... #defcongroups #defcon

youtube.com

DC610 Presents - What We Did On Our Hacker Summer Vacation

YouTube video by Second Order Chaos

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DEF CON @defcon.bsky.social · 02/09/2026

A fun (and accurate) snippet from DC34 Coverage at Japan's Asahi.com: www.asahi.com/articles/ASV... "..casual light clothes such as T-shirts and shorts, but there are also people who wear dinosaur costumes and clothes full of personality that look like handmade devices all over their bodies."

picture from Asahi.com's DC 34 coverage with a handmade sign pointing the way to Human Registration

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Daemon Chadeau @daemonchadeau.com · 31/08/2026

Come and relive my @defcon.bsky.social Main Stage set over on my Mixcloud! www.mixcloud.com/daemonchadea...

mixcloud.com

Defcon 34 Friday Night Main Stage Set

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DEF CON @defcon.bsky.social · 01/09/2026

Let’s start the week with an early release talk from DEF CON 34 - this time it’s ‘ESP32 as a counter-surveillance platform’. The humble, reasonably-priced microcontroller and an emerging group of applications, are helping democratize counter-surveillance. youtu.be/PcK-TDmzshc #defcon #defcon34

youtu.be

DEF CON 34 - ESP32 as counter-surveillance platform - Cybertiger, Colonel Panic, The Wrew

YouTube video by DEFCONConference

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DEF CON @defcon.bsky.social · 26/08/2026

The DC34 early release talks roll on with Bill Swearingen’s presentation on defeating facial recognition with a little strategically applied style. Confound the panopticon and keep the look crispy. Wins all around. youtu.be/WyPmt8CE5L4 #defcon34 #defcon #facialrecognition

youtu.be

DEF CON - noRecognition: Could a pattern on clothing fool Facial Recognition? - Bill Swearingen

YouTube video by DEFCONConference

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DEF CON @defcon.bsky.social · 24/08/2026

DEF CON Training Middle East is coming - join us at Exhibition World Bahrain November 8-10 for deep, technical trainings from some of the best trainers in the business. You can learn about all the offerings here: me.shop.defcon.org/collections/... #defcon #defcontraining

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ZCP 🐈‍⬛😈🎨 Be Spoopy 🎨😈🐈‍⬛ @zombiecheshirepro.bsky.social · 24/08/2026

Super happy with my little #defcon #badgelife collection including @defcon.bsky.social official badges and @dcgothcon.bsky.social ones. I love planning and working on things with my GothCon crew.

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STΞVΞ HOLDΞN @sdholden.bsky.social · 20/08/2026

One of my favorite DJs @missjackalopedj.bsky.social got this cool award from @defcon.bsky.social #cybersecurity #music #dj #rocks #best_stickers ... you can support her work at www.patreon.com/c/Missjackal...

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DEF CON @defcon.bsky.social · 21/08/2026

For your weekend: The first early release talk from DEF CON 34 has made it to our YouTube channel. Please enjoy national treasure Cliff Stoll updating his 'Stalking the Wily Hacker'. If you haven't read 'The Cuckoo's Egg', this is your sign. youtu.be/656058JxTM0 #defcon #defcon34

youtu.be

DefCon 34 - Stalking the Wily Hacker: 40 years later - Cliff Stoll

YouTube video by DEFCONConference

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DEF CON @defcon.bsky.social · 15/08/2026

#defconmovienight returns from #DEFCON34 with the enigmatic ‘Brewster McCloud’ from 1970. Starring Bud Cort, and weird in a way that doesn’t get funded any more. Join us at 8pm PDT in the discord (discord.gg/defcon). We’ll be in the movie-night-text channel teaching ourselves to fly.

Movie poster for Brewster McCloud (Robert Altman 1970)

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Amie DD @amiedd.bsky.social · 12/08/2026

If you got one of my unassembled LEGO minifig head SAOs at @defcon.bsky.social, here’s the assembly guide, including an interactive BOM for part placement. amiedd.github.io/brick-head-d.... #defcon34

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STΞVΞ HOLDΞN @sdholden.bsky.social · 13/08/2026

My first draft of my #defcon @defcon.bsky.social 34 (2026) report >> direct download PDF >> blog post TBD >> assets.libsyn.com/show/22036/D...

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DEF CON @defcon.bsky.social · 14/08/2026

Attention #defcon34 attendees: the excellent folks of @defconmusic.bsky.social would appreciate your input on how they can keep improving the music side of #defcon. If you could take a moment to fill out their quick survey, we’d be most grateful. forms.cloud.microsoft/r/TaAf8fGBA4

forms.cloud.microsoft

Microsoft Forms

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Charlie Gerard @devdevcharlie.com · 09/08/2026

My friends and I won a CTF! 🥳🥇 Had so much fun hanging out with the Lonely Hackers Club at @defcon.bsky.social Definitely coming back next year!

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bash explode @bashexplode.com · 09/08/2026

dropped a CD of my album at the @defcon.bsky.social sticker wall. finders keepers 🤘

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Jfer @jfersec.bsky.social · 09/08/2026

Went to defcon, and the merch line was nuts! 😆 @defcon.bsky.social Met Jeff M. , Paul N. And Ada Wong what an event! Looking forward to next year.

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Bianca 'BiaSciLab' Lewis @biascilab.bsky.social · 09/08/2026

As DEF CON came to an end I had the chance to talk about DCNextGen at closing ceremonies. If you have kids ages 8-18 bring them to our program next year! 💫💜 @defconnextgen.bsky.social @defcon.bsky.social #defcon #hacker #cybersecurity

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hideouspenguin.bsky.social @hideouspenguin.bsky.social · 10/08/2026

Already missing @defcon.bsky.social friends new and old. See you again next year.

A projected image saying “It’s now safe to turn off your DefCon”

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Phish Stories @phishstories.bsky.social · 10/08/2026

Thank you again to our contestants and to @defcon.bsky.social for making it a great con all around! A new scenario is already being cooked up!

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Bianca 'BiaSciLab' Lewis @biascilab.bsky.social · 10/08/2026

Wore my epic raccoon onesie to the DCNextGen party and was twinning with one of our volunteers 🦝 @defconnextgen.bsky.social @defcon.bsky.social #defcon #cybersecurity #hacker

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Eric Geller @ericjgeller.com · 10/08/2026

New: In a major expansion of its work, @projectfranklin.bsky.social will pay cybersecurity firms to provide free monitoring and protection services to rural water utilities. I talked to organizer Jake Braun all about it at @defcon.bsky.social: www.cybersecuritydive.com/news/water-c...

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rand0h @akacki.net · 10/08/2026

The post @defcon.bsky.social blues don’t get a whole lot easier year to year. Especially when you’re dumb like me and rip yourself out to take the red eye home. Something something be happy it happened at all…

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DEF CON @defcon.bsky.social · 10/08/2026

It’s not quite over- there is an afterparty. And it’s at the Liv in the extremely swanked out Fontainebleau. Your badge gets you admission and a free drink. Doors open at 10:30. See you there. #defcon #defcon34 #afterparty

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DEF CON @defcon.bsky.social · 09/08/2026

DEF CON 34 is wrapping up, and it’s been another amazing year. Deep thanks to the peerless #defcon community, the staff and Goons who make this thing run, and to the creators who share their passions. We’re already thinking of ways to top this year. See you soon, everyone. #defcon #defcon34

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Fr. Robert Ballecer, SJ @padresj.bsky.social · 09/08/2026

Thanks @defcon.bsky.social ! See you next year! (Unless it's cancelled) 😇

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Weems @medanarchy.bsky.social · 09/08/2026

I did not make it to @defcon.bsky.social this year but the badge is not just a gadget but it can encrypt data securely and Bunnie the designer claimed that it COULD possibly with the code efficient enough be on the edge of running a unix-based OS to: @wired.com www.wired.com/story/defcon...

wired.com

The New Defcon Badges Pack a Unique Open Source Chip That Doubles as a Security Key

Created by legendary hardware hacker Andrew “bunnie” Huang, the badges for this year’s famed security conference aim to push the boundaries of security and transparency.

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DEF CON @defcon.bsky.social · 09/08/2026

If there's no afterparty, how can we be sure there was a party at all? Fortunately, there is an afterparty. And it’s at the Liv in the extremely swanked out Fontainebleau. Your badge gets you admission and a free drink. Doors open at 10:30. See you there. #defcon #defcon34 #afterpartyflyer

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DEF CON @defcon.bsky.social · 09/08/2026

Looking for an extra #defcon34 badge? We’ve got you covered. Meet us at Registration at 10am tomorrow and you can pick up a spare for $100. While supplies last, of course. Punctuality is advised. #defcon #badgelife

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