DEF CON
@defcon.bsky.social
The world’s premier hacker conference. Serving the global hacker community since 1993.
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Defcon.social
#defconmovie night is tomorrow at 8pm PST. We'll be checking out 'Beetlejuice'. Join us in the movie-night-text channel of the #defcon Discord (discord.gg/defcon) and we'll vote on whether B. really is the ghost with the most. RIP Catherine O'Hara.
February 6, 2026 at 11:33 PM
#defconmovie night is tomorrow at 8pm PST. We'll be checking out 'Beetlejuice'. Join us in the movie-night-text channel of the #defcon Discord (discord.gg/defcon) and we'll vote on whether B. really is the ghost with the most. RIP Catherine O'Hara.
DEF CON 34 Update! All of the calls for DC34 in Vegas are now live, including the Calls for Papers, Workshops, Demo Labs, and Policy.
defcon.org/html/defcon-...
Submission doors are open and the clock is running. Choose your adventure.
#defcon #cfp #defcon34
defcon.org/html/defcon-...
Submission doors are open and the clock is running. Choose your adventure.
#defcon #cfp #defcon34
February 5, 2026 at 11:47 PM
DEF CON 34 Update! All of the calls for DC34 in Vegas are now live, including the Calls for Papers, Workshops, Demo Labs, and Policy.
defcon.org/html/defcon-...
Submission doors are open and the clock is running. Choose your adventure.
#defcon #cfp #defcon34
defcon.org/html/defcon-...
Submission doors are open and the clock is running. Choose your adventure.
#defcon #cfp #defcon34
Friendly reminder - Early Bird Pricing for our Singapore Training Event ends February 8. Signing up now reserves your spot and earns you a $250 discount.
training.defcon.org
#defcon #defcontraining #singapore #earlybird
training.defcon.org
#defcon #defcontraining #singapore #earlybird
DEF CON Security Training
defcontrainings
training.defcon.org
February 5, 2026 at 10:19 PM
Friendly reminder - Early Bird Pricing for our Singapore Training Event ends February 8. Signing up now reserves your spot and earns you a $250 discount.
training.defcon.org
#defcon #defcontraining #singapore #earlybird
training.defcon.org
#defcon #defcontraining #singapore #earlybird
Good news,everyone! We consulted the groundhog and #DEFCON34 content call season is officially open!
Starting today, most content calls are open, including
Villages
Contests
Communities
Music
Soundtrack
Are all ready to accept your submissions.
defcon.org/html/defcon-...
Let’s go.
#defcon
Starting today, most content calls are open, including
Villages
Contests
Communities
Music
Soundtrack
Are all ready to accept your submissions.
defcon.org/html/defcon-...
Let’s go.
#defcon
February 2, 2026 at 11:06 PM
Good news,everyone! We consulted the groundhog and #DEFCON34 content call season is officially open!
Starting today, most content calls are open, including
Villages
Contests
Communities
Music
Soundtrack
Are all ready to accept your submissions.
defcon.org/html/defcon-...
Let’s go.
#defcon
Starting today, most content calls are open, including
Villages
Contests
Communities
Music
Soundtrack
Are all ready to accept your submissions.
defcon.org/html/defcon-...
Let’s go.
#defcon
The wait is over - online reg for DEF CON Singapore is open!
It’s all happening at the Marina Bay Sands, April 28-30.
Online reg is open until Apr. 24. There's an Early Bird discount and a Student discount.
Singapore Training reg is open, too
sg.shop.defcon.org
See you in Singapore!
It’s all happening at the Marina Bay Sands, April 28-30.
Online reg is open until Apr. 24. There's an Early Bird discount and a Student discount.
Singapore Training reg is open, too
sg.shop.defcon.org
See you in Singapore!
January 29, 2026 at 10:39 PM
The wait is over - online reg for DEF CON Singapore is open!
It’s all happening at the Marina Bay Sands, April 28-30.
Online reg is open until Apr. 24. There's an Early Bird discount and a Student discount.
Singapore Training reg is open, too
sg.shop.defcon.org
See you in Singapore!
It’s all happening at the Marina Bay Sands, April 28-30.
Online reg is open until Apr. 24. There's an Early Bird discount and a Student discount.
Singapore Training reg is open, too
sg.shop.defcon.org
See you in Singapore!
Early Bird pricing is now available for DEF CON Training Singapore! 🇸🇬
Early bird pricing is available until February 8, giving you priority access to advanced, real-world training at a reduced rate.
Secure your spot!
Find the full Singapore course lineup at training.defcon.org/collections/...
Early bird pricing is available until February 8, giving you priority access to advanced, real-world training at a reduced rate.
Secure your spot!
Find the full Singapore course lineup at training.defcon.org/collections/...
January 26, 2026 at 7:25 PM
Early Bird pricing is now available for DEF CON Training Singapore! 🇸🇬
Early bird pricing is available until February 8, giving you priority access to advanced, real-world training at a reduced rate.
Secure your spot!
Find the full Singapore course lineup at training.defcon.org/collections/...
Early bird pricing is available until February 8, giving you priority access to advanced, real-world training at a reduced rate.
Secure your spot!
Find the full Singapore course lineup at training.defcon.org/collections/...
Big website updates for DEF CON Singapore!
You can now find information on many of the Villages, Contests and Communities you’ll find when you join us in April. We hope you’ll take some time to get familiar with the lineup.
defcon.org/html/defcon-...
More info coming. See you soon!
You can now find information on many of the Villages, Contests and Communities you’ll find when you join us in April. We hope you’ll take some time to get familiar with the lineup.
defcon.org/html/defcon-...
More info coming. See you soon!
DEF CON® Singapore Hacking Conference
defcon.org
January 23, 2026 at 2:33 AM
Big website updates for DEF CON Singapore!
You can now find information on many of the Villages, Contests and Communities you’ll find when you join us in April. We hope you’ll take some time to get familiar with the lineup.
defcon.org/html/defcon-...
More info coming. See you soon!
You can now find information on many of the Villages, Contests and Communities you’ll find when you join us in April. We hope you’ll take some time to get familiar with the lineup.
defcon.org/html/defcon-...
More info coming. See you soon!
This Saturday’s #defconmovienight brings one of the great #hardwarehacking challenges of the 20th century - Apollo 13.
Join us Sat. 8pm PST in the movie-night-text channel of our Discord (discord.gg/defcon). We’ll be watching our monitors breathlessly like Mission Control.
#defcon #yayscience
Join us Sat. 8pm PST in the movie-night-text channel of our Discord (discord.gg/defcon). We’ll be watching our monitors breathlessly like Mission Control.
#defcon #yayscience
January 21, 2026 at 12:36 AM
This Saturday’s #defconmovienight brings one of the great #hardwarehacking challenges of the 20th century - Apollo 13.
Join us Sat. 8pm PST in the movie-night-text channel of our Discord (discord.gg/defcon). We’ll be watching our monitors breathlessly like Mission Control.
#defcon #yayscience
Join us Sat. 8pm PST in the movie-night-text channel of our Discord (discord.gg/defcon). We’ll be watching our monitors breathlessly like Mission Control.
#defcon #yayscience
Just a friendly reminder that the exemplary humans at @somafm keep #defconradio going all year long. Stream the vibe immaculate at somafm.com/defcon/.
#defcon #grooves
#defcon #grooves
DEF CON Radio from SomaFM
Music for Hacking. The DEF CON Year-Round Channel.
somafm.com
January 16, 2026 at 11:55 PM
Just a friendly reminder that the exemplary humans at @somafm keep #defconradio going all year long. Stream the vibe immaculate at somafm.com/defcon/.
#defcon #grooves
#defcon #grooves
Just a friendly reminder that the exemplary humans at @somafm keep #defconradio going all year long. Stream the vibe immaculate at somafm.com/defcon/.
#defcon #grooves
#defcon #grooves
DEF CON Radio from SomaFM
Music for Hacking. The DEF CON Year-Round Channel.
somafm.com
January 16, 2026 at 11:54 PM
Just a friendly reminder that the exemplary humans at @somafm keep #defconradio going all year long. Stream the vibe immaculate at somafm.com/defcon/.
#defcon #grooves
#defcon #grooves
The #defconmovienight cruise ship is docking briefly in the land of 70s disaster cinema with ‘The Poseidon Adventure’. Join us in the movie-night-text channel of our Discord (discord.gg/defcon) Saturday at 8pm PST for thrills, chills and Ernest Borgnine.
January 8, 2026 at 9:51 PM
The #defconmovienight cruise ship is docking briefly in the land of 70s disaster cinema with ‘The Poseidon Adventure’. Join us in the movie-night-text channel of our Discord (discord.gg/defcon) Saturday at 8pm PST for thrills, chills and Ernest Borgnine.
Friendly reminder, #DEFCONSingapore edition:
The DEF CON Singapore Call for Papers is still open, but only until Feb 15. Our CFP Reviewers are standing by, so don’t delay!
All the information you need is here:
defcon.org/html/defcon-...
#defcon #singapore #callforpapers #cfp
The DEF CON Singapore Call for Papers is still open, but only until Feb 15. Our CFP Reviewers are standing by, so don’t delay!
All the information you need is here:
defcon.org/html/defcon-...
#defcon #singapore #callforpapers #cfp
DEF CON® Singapore Hacking Conference - Call for Papers
defcon.org
January 8, 2026 at 1:01 AM
Friendly reminder, #DEFCONSingapore edition:
The DEF CON Singapore Call for Papers is still open, but only until Feb 15. Our CFP Reviewers are standing by, so don’t delay!
All the information you need is here:
defcon.org/html/defcon-...
#defcon #singapore #callforpapers #cfp
The DEF CON Singapore Call for Papers is still open, but only until Feb 15. Our CFP Reviewers are standing by, so don’t delay!
All the information you need is here:
defcon.org/html/defcon-...
#defcon #singapore #callforpapers #cfp
The DEF CON Training Singapore course lineup is now live!
Explore the full lineup and course details here:
training.defcon.org/collections/...
Spots go fast, so take a look, grab your seat, and get ready to learn and build.
Early bird pricing available until February 8. See you in Singapore 🇸🇬
Explore the full lineup and course details here:
training.defcon.org/collections/...
Spots go fast, so take a look, grab your seat, and get ready to learn and build.
Early bird pricing available until February 8. See you in Singapore 🇸🇬
DEF CON Training Singapore 2026
DEF CON Training will be offering intensive, hands-on 2-day trainings with world-class instructors ahead of DEF CON Singapore 2026. Additional classes will be listed as they are approved Join us at th...
training.defcon.org
January 6, 2026 at 8:16 PM
The DEF CON Training Singapore course lineup is now live!
Explore the full lineup and course details here:
training.defcon.org/collections/...
Spots go fast, so take a look, grab your seat, and get ready to learn and build.
Early bird pricing available until February 8. See you in Singapore 🇸🇬
Explore the full lineup and course details here:
training.defcon.org/collections/...
Spots go fast, so take a look, grab your seat, and get ready to learn and build.
Early bird pricing available until February 8. See you in Singapore 🇸🇬
Happy New Year!
Heartfelt thanks to the #DEFCON community for your support in 2025. Here’s hoping 2026 exceeds your dreams.
We’ve got big plans. In addition to DC34 in Vegas we’re returning to #defconbahrain and adding #DEFCONSingapore.
Keep in touch. Look out for each other. See you soon.
Heartfelt thanks to the #DEFCON community for your support in 2025. Here’s hoping 2026 exceeds your dreams.
We’ve got big plans. In addition to DC34 in Vegas we’re returning to #defconbahrain and adding #DEFCONSingapore.
Keep in touch. Look out for each other. See you soon.
January 1, 2026 at 12:25 AM
Happy New Year!
Heartfelt thanks to the #DEFCON community for your support in 2025. Here’s hoping 2026 exceeds your dreams.
We’ve got big plans. In addition to DC34 in Vegas we’re returning to #defconbahrain and adding #DEFCONSingapore.
Keep in touch. Look out for each other. See you soon.
Heartfelt thanks to the #DEFCON community for your support in 2025. Here’s hoping 2026 exceeds your dreams.
We’ve got big plans. In addition to DC34 in Vegas we’re returning to #defconbahrain and adding #DEFCONSingapore.
Keep in touch. Look out for each other. See you soon.
Reposted by DEF CON
@defcon.bsky.social just posted the Recon Village talks
Here's a list of six talks that look interesting for OSINT
Discord OSINT www.youtube.com/watch?v=Xp4l...
AI Agents for Real-Time OSINT www.youtube.com/watch?v=oHjQ...
Bypassing Rate Limits and Maintaining OPSEC www.youtube.com/watch?v=yIUf...
Here's a list of six talks that look interesting for OSINT
Discord OSINT www.youtube.com/watch?v=Xp4l...
AI Agents for Real-Time OSINT www.youtube.com/watch?v=oHjQ...
Bypassing Rate Limits and Maintaining OPSEC www.youtube.com/watch?v=yIUf...
DEF CON 33 Recon Village - Discord OSINT - Zach Malinich
YouTube video by DEFCONConference
www.youtube.com
December 31, 2025 at 2:56 PM
@defcon.bsky.social just posted the Recon Village talks
Here's a list of six talks that look interesting for OSINT
Discord OSINT www.youtube.com/watch?v=Xp4l...
AI Agents for Real-Time OSINT www.youtube.com/watch?v=oHjQ...
Bypassing Rate Limits and Maintaining OPSEC www.youtube.com/watch?v=yIUf...
Here's a list of six talks that look interesting for OSINT
Discord OSINT www.youtube.com/watch?v=Xp4l...
AI Agents for Real-Time OSINT www.youtube.com/watch?v=oHjQ...
Bypassing Rate Limits and Maintaining OPSEC www.youtube.com/watch?v=yIUf...
#defconmovienight keeps the holiday magic going with another John Cusack vehicle. Join us Saturday at 8pm PST for 'Better Off Dead'. We'll be in the movie-night-text channel of the Discord (discord.gg/defcon), calculating the street value of K-12. Closest guess without going over wins Fronch Toast.
December 19, 2025 at 12:33 AM
#defconmovienight keeps the holiday magic going with another John Cusack vehicle. Join us Saturday at 8pm PST for 'Better Off Dead'. We'll be in the movie-night-text channel of the Discord (discord.gg/defcon), calculating the street value of K-12. Closest guess without going over wins Fronch Toast.
Reposted by DEF CON
Prepare yourself for next year’s DEF CON and Black Hat with this new @nostarchpress.bsky.social bundle: Hacking. 18 books for as little as $36—and you’re supporting EFF’s fight for digital freedom! www.humblebundle.com/books/hacki...
Humble Tech Book Bundle: Hacking by No Starch
Turn your curiosity about computer hacking into a fast-paced, proven, and practical career with the latest Humble Tech Book Bundle!
www.humblebundle.com
December 17, 2025 at 10:01 PM
Prepare yourself for next year’s DEF CON and Black Hat with this new @nostarchpress.bsky.social bundle: Hacking. 18 books for as little as $36—and you’re supporting EFF’s fight for digital freedom! www.humblebundle.com/books/hacki...
#defconmovienight presents another Xmas-adjacent movie this week. Join us at 8pm PST Saturday for ‘The Ice Harvest’. We’ll be in the movie-night-text channel of the #defcon Discord (discord.gg/defcon) for some holiday magic. BTW - the tagline ‘Thick Thieves. Thin Ice’ is just about perfect.
December 13, 2025 at 1:09 AM
#defconmovienight presents another Xmas-adjacent movie this week. Join us at 8pm PST Saturday for ‘The Ice Harvest’. We’ll be in the movie-night-text channel of the #defcon Discord (discord.gg/defcon) for some holiday magic. BTW - the tagline ‘Thick Thieves. Thin Ice’ is just about perfect.
The Call for Trainers is now OPEN for #DEFCONTraining Las Vegas at #DEFCON 34!
Do you have expertise in emerging threats, defensive strategies, or cutting-edge security techniques? We want to hear from you!
Visit training.defcon.org to submit your application by January 12, 2026.
Do you have expertise in emerging threats, defensive strategies, or cutting-edge security techniques? We want to hear from you!
Visit training.defcon.org to submit your application by January 12, 2026.
December 4, 2025 at 6:44 PM
The Call for Trainers is now OPEN for #DEFCONTraining Las Vegas at #DEFCON 34!
Do you have expertise in emerging threats, defensive strategies, or cutting-edge security techniques? We want to hear from you!
Visit training.defcon.org to submit your application by January 12, 2026.
Do you have expertise in emerging threats, defensive strategies, or cutting-edge security techniques? We want to hear from you!
Visit training.defcon.org to submit your application by January 12, 2026.
The #defconsingapore Calls for Papers and Demo Labs are now OPEN. If you've got a presentation or open source project to share with the #defcon community, the time is now. Deadline is Feb 15, 2026.
Info here:
CFP: defcon.org/html/defcon-...
Demo Labs:
defcon.org/html/defcon-...
Info here:
CFP: defcon.org/html/defcon-...
Demo Labs:
defcon.org/html/defcon-...
December 3, 2025 at 11:30 PM
The #defconsingapore Calls for Papers and Demo Labs are now OPEN. If you've got a presentation or open source project to share with the #defcon community, the time is now. Deadline is Feb 15, 2026.
Info here:
CFP: defcon.org/html/defcon-...
Demo Labs:
defcon.org/html/defcon-...
Info here:
CFP: defcon.org/html/defcon-...
Demo Labs:
defcon.org/html/defcon-...
#defconmovienight steps into December with the first of several arguably Xmas themed movies. Join us at 8pm PST Saturday, 12/6 for ‘Brazil’. We’ll be hanging out in the movie-night-text channel of the Discord (discord.gg/defcon) trying to keep flies out of the printer.
December 3, 2025 at 1:29 AM
#defconmovienight steps into December with the first of several arguably Xmas themed movies. Join us at 8pm PST Saturday, 12/6 for ‘Brazil’. We’ll be hanging out in the movie-night-text channel of the Discord (discord.gg/defcon) trying to keep flies out of the printer.
Reposted by DEF CON
EFF 🤝 @nostarchpress.bsky.social. Support the fight for privacy and free speech online when you grab this @humblebundle.com book bundle today! www.humblebundle.com/books/hacki...
Humble Tech Book Bundle: Hacking by No Starch
Turn your curiosity about computer hacking into a fast-paced, proven, and practical career with the latest Humble Tech Book Bundle!
www.humblebundle.com
December 1, 2025 at 10:00 PM
EFF 🤝 @nostarchpress.bsky.social. Support the fight for privacy and free speech online when you grab this @humblebundle.com book bundle today! www.humblebundle.com/books/hacki...
Reposted by DEF CON
📣🎬 Calling all filmmakers & artists! Celebrate Public Domain Day in January 2026 by making a 2–3 min short film using public domain works from 1930 & earlier.
📆 Deadline: January 7, 2026
💰 First prize: $1,500
ℹ️ Details 👉 blog.archive.org/2025/12/01/2...
#contest #filmmaking #publicdomain
📆 Deadline: January 7, 2026
💰 First prize: $1,500
ℹ️ Details 👉 blog.archive.org/2025/12/01/2...
#contest #filmmaking #publicdomain
December 1, 2025 at 10:45 PM
📣🎬 Calling all filmmakers & artists! Celebrate Public Domain Day in January 2026 by making a 2–3 min short film using public domain works from 1930 & earlier.
📆 Deadline: January 7, 2026
💰 First prize: $1,500
ℹ️ Details 👉 blog.archive.org/2025/12/01/2...
#contest #filmmaking #publicdomain
📆 Deadline: January 7, 2026
💰 First prize: $1,500
ℹ️ Details 👉 blog.archive.org/2025/12/01/2...
#contest #filmmaking #publicdomain