DEF CON

Sam Bowne & Team - Beginner's Guide to Attacks and Defenses - DCTLV2025 **4-Day Training** **Please note: This is a four-day training that will be held Saturday-Tuesday (August 9-12). Participants will receive a DEF CON Human Badge with their registration** Name of Training: Beginner's Guide to Attacks and DefensesTrainer(s): Sam Bowne, Elizabeth Biddlecome, Kaitlyn Handelman, and Irvin LemusDates: August 9-

There' still room in our @defcon Training event!

https://training.defcon.org/collections/def-con-training-las-vegas-2025/products/sam-bowne-team-beginners-guide-to-attacks-and-defenses-dctlv2025-4-day-training

The Tor Project | Privacy & Freedom Online Defend yourself against tracking and surveillance. Circumvent censorship.

Don’t forget #DefCon offers all of its core services as Tor .onion sites, including our Mastodon instance.

Looking to uplevel your privacy? Install the @torproject Tor Browser Bundle and take advantage.

https://www.torproject.org/download/

Just in time for #DefCon our instance has been upgraded to 4.4.2, search indexes rebuilt, and moderators are standing by.

Highway and mountains, with occasional flat tires.

On the #roadtoDEFCON

#roadtoDEFCON #FoodGasLodging

ριɳɠυιɳσ (@pinguino@defcon.social) Attached: 1 image Fit check

Approved.
https://defcon.social/@pinguino/114966241801639200

On the #roadtoDEFCON

We can make our elections trustworthy in spite of the inevitable security weaknesses in equipment!

How? By using an architecture that *tolerates* security flaws instead of requiring you to eliminate them. This is called "Software Independence", formalized by Ron Rivest (the R in RSA) about 15 […]

The flight attendant said out flight to Vegas is 80% full. I asked if they fly this route frequently and they said three days ago the flight was empty.
#RoadToDefCon

Anyway, if you're interested in actually learning about this this stuff - which is interesting and important - and you're coming to DEFCON, come join us at the Voting Village!

https://www.mattblaze.org/papers/VV2025-schedule.pdf

Reminder! Posting about DEF CON 33? Don’t forget to tag it with #DEFCON so it is more discoverable.

Picture of the main pool at the Sahara Hotel and Casino

Greetings, luminous humans of #defcon! Welcome to the last weekend before #DEFCON33!

Make sure to join us Thursday from 7:30 to 10:30 at the Sahara for the KEVOPS Sellout Pool Party! Refreshing pool, delicious tacos, and DEF CON DJ’s on the ones and twos. DEF […]

[Original post on defcon.social]

Working through some issues with the Tor .onion for https://forum.defcon.org but the normal https site is still available for your #DefCon planning needs.

DEF CON 33 update image

Friendly reminder: Online Registration for #defcon33 closes August 1! Go to shop.defcon.org to beat the deadline.

After that point, the only reg option is cash at the door. #linecon abides. Peace, love and beachballs to all.

See you soooooon.

Silhouette of an investigator in an overcoat and deerstalker cap with a flashlight. In the pool of light the flashlight produces are the words ‘can you decipher the messages’

All signs point to #DEFCONTraining Las Vegas 2025…

Think you have what it takes? If you recognize qrspba, unpxre, or onqtryvsr then follow the trail to Z2VudmF2YXQucXJzcGJhLmJldAo= to learn more. There’s still time to sign up!

#defcon #defcon33 #cybertraining […]

[Original post on defcon.social]

DEF CON Singapore logo

#DEF CON is coming to #singapore !

DEF CON and HTX will be co-organizing DEF CON SG, with CTIS as our strategic partner.

Join us at the Marina Bay Sands April 28-30, 2026 for the full DEF CON experience: presentations, hands-on Villages, contests and musical […]

[Original post on defcon.social]

Don’t forget to keep a tab open for https://info.defcon.org/ the one stop location for schedules and event updates for #defcon 33. Hacker Tracker and info share the same database, so both are good!

Starting to build the #DEFCON Data Duplication Village HDD for all the https://infocon.org/cons/ files, about 5+ TB in size.

Join the @defcon Bike Ride. 25 miles in the desert at 7am on Friday Aug 8th! Deets here: https://cycleoverride.org/2025-defcon-33-defcon-bike-ride/

Jeff Moss in front of a sign for the AICS

Jeff Moss helping publicize DEF CON’s participation in the AICS

#DEFCON Founder Jeff Moss is in Bahrain promoting our participation in the Arab International Cybersecurity Conference (AICS) and Exhibition November 5-6, 2025. We'll be bringing a sampling of our villages, workshops and contests to the cutting-edge Exhibition […]

[Original post on defcon.social]

Last night at about 11:30pm, I took a practice ham radio Technician test. I fell asleep twice. I guessed most answers (I know jack all about radio, slightly more about electrical engineering). I got 63%.

I suspect I can study up enough in time to pass a the exam at @defcon ham […]

Done with the big pre #DEFCON conference archives update! Starting g with 8dot8 and ending with ZeroNights, about 25 conferences updated and English captions added. Enjoy! https://infocon.org/con/

Movie poster for ‘The Death of Stalin’

Tonight’s #defconmovienight features Armando Iannuci’s ‘The Death of Stalin’. The title doesn’t sound funny, but the movie is. Join us at 8pm PDT in the #defcon discord (discord.gg/defcon). We’ll be hiding in the Movie-night-text channel waiting for the org chart to shake out.

Images of DEF CON trainings swag

🚨 Swag alert! 🚨

Final preparations are underway for #DEFCONTraining Las Vegas 2025! Take a look below for a sneak preview of this year’s training swag, provided exclusively to students and instructors.

It’s not too late to sign up. Browse the course offerings […]

[Original post on defcon.social]

image of the DEF CON 32 Packet Hacking Village's Wall of Sheep

The #wallofsheep has come a long way since the days when offenders were scrawled on paper plates stapled to a wall.

#ThrowbackThursday #defcon32 #defcon

DEF CON 33 Update image

One final reminder: #defcon’s online registration price goes from Regular ($560) to Late ($580) at 8:59pm EST on July 18. You still have some time to avoid the price increase.

Shop.defcon.org

Also, online reg closes 8/1. After that, #linecon and cash at the […]

[Original post on defcon.social]

If you’re wondering why half the internet broke tonight for a short period, TCS accidentally hijacked Cloudflare.

image of a workshop style classroom.

Are you ready? DEF CON 33 Workshop registration goes live at noon PDT tomorrow, July 15!

The full workshop lineup and HumaniTix links are available on the website (https://defcon.org/html/defcon-33/dc-33-workshops.html) and on Hacker Tracker.

Godspeed and good luck to all of you!

DEF CON Bahrain logo

After two successful events in China, we've been looking for more places to share our hacker spirit with the world.

First up we will be dipping our cyber toe in Bahrain by taking part in the Arab International Cybersecurity Conference (AICS) and Exhibition […]

[Original post on defcon.social]

Reservoir Dogs movie poster

#defconmovienight returns Saturday at 8pm PDT with ‘Reservoir Dogs’. Do your best slo-mo skinny-tie cool-walk over to the #defcon discord (discord.gg/defcon) for some film and fellowship. We’ll be hiding out in the movie-night-text channel.