2025-05-12

๐ŸŽฏ Triple CTF Weekend in Copenhagen! ๐Ÿ‡ฉ๐Ÿ‡ฐ๐Ÿ’ฅ

This weekend, @KalmarunionenDM gathered physically for another meetup at Eupry in Copenhagen for an intense and fun-filled hacking meetup - joined by several of our teammates chiming in remotely! ๐Ÿง โšก

While we were initially prepping for two bigger CTFs that unfortunately got postponed, we quickly adapted and dove headfirst into three other competitions instead:
๐Ÿ”น Break the Syntax CTF
๐Ÿ”น Dam CTF
๐Ÿ”น San Diego CTF

The result?
๐Ÿฅ‡ We full cleared and won Break the Syntax CTF, Dam CTF, and San Diego CTF - a triple win that kept the flag bell ringing non-stop all weekend ๐Ÿ””๐Ÿ’ฅ

A big thanks to #Eupry for hosting us - we had a blast solving challenges together, sharing knowledge, and pushing each other to think deeper and faster.

Weekends like this are part of what makes #Kalmarunionen special: a mix of collaboration, curiosity, and fighting spirit - and a chance for aspiring members to challenge themselves alongside some of the best CTF players in the world.

With the bigger CTFs postponed, we got an opportunity to slow down and dive deeper - sharing knowledge, solving problems together, and enjoying capturing flags. We play to win, but we also play because we love the challenge ๐Ÿ’ช๐Ÿง โœจ

โœจ Special shoutout ๐Ÿ™Œ to our sponsors whose support makes these meetups and our CTF journey possible:
Industriens Fond, JN Data, Dubex, ICSRange

If youโ€™d like to support Kalmarunionen, reach out to Rolf Lunn or Morten Eskildsen on LinkedIn or write to us at sponsor@kalmarunionen.dk.

#kalmarunionen #ctf #hacking #cybersecurity #community #breakthesyntax #dam #sdctf

2025-03-09

KalmarCTF 2025 is a wrap! Congrats to the winning teams!

๐Ÿฅ‡ - organizers
๐Ÿฅˆ - Blue Water
๐Ÿฅ‰ - Tower of Hanoi
4๏ธโƒฃ - r3kapig
5๏ธโƒฃ - about:blankets
6๏ธโƒฃ - The Flat Network Society

A big thanks to our sponsors hex-rays and Zellic! See you all next year! ๐Ÿšฉ

2025-03-05

With under 48 hours till we kick off with #KalmarCTF 2025, we are happy to announce that @zellic_io is joining as a sponsor this year, as well as an updated prize pool!
Come compete with the best competitive hackers from around the world!

After securing the #1 spot on CTFtime last year, we've spent the winter cooking up a nice set of challenges to share what we've learned with the community! From approachable curiosities to the fiendishly difficult! There should be something for everyone!

Do you have what it takes to find 0-days and novel techniques? Will you solve all of our challenges? Join us from Friday!

Updated Prize Pool
๐Ÿฅ‡ First Place: $2000 and 3x IDA Pro Named Licenses (each with 2 Decompilers)
๐Ÿฅˆ Second Place: $1000 and 2x IDA Pro Named Licenses (each with 2 Decompilers)
๐Ÿฅ‰ Third Place: $750 and 1x IDA Pro Named License (with 2 Decompilers)
4๏ธโƒฃ Fourth Place: $500
5๏ธโƒฃ Fifth Place: $400
6๏ธโƒฃ Sixth Place: $350

Thanks again to @zellic_io as they join our long time sponsor @HexRaysSA in helping us put on a great CTF for the community!

Registrations are now open at kalmarc.tf !

2025-03-01

๐—ž๐—ฎ๐—น๐—บ๐—ฎ๐—ฟ๐—–๐—ง๐—™ ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฑ ๐—ถ๐˜€ ๐—ท๐˜‚๐˜€๐˜ ๐—ฎ๐—ฟ๐—ผ๐˜‚๐—ป๐—ฑ ๐˜๐—ต๐—ฒ ๐—ฐ๐—ผ๐—ฟ๐—ป๐—ฒ๐—ฟ - ๐—ฐ๐—ผ๐—บ๐—ฒ ๐—ฐ๐—ผ๐—บ๐—ฝ๐—ฒ๐˜๐—ฒ ๐˜„๐—ถ๐˜๐—ต ๐˜๐—ต๐—ฒ ๐—ฏ๐—ฒ๐˜€๐˜ ๐—ฐ๐—ผ๐—บ๐—ฝ๐—ฒ๐˜๐—ถ๐˜๐—ถ๐˜ƒ๐—ฒ ๐—ต๐—ฎ๐—ฐ๐—ธ๐—ฒ๐—ฟ๐˜€ ๐—ณ๐—ฟ๐—ผ๐—บ ๐—ฎ๐—ฟ๐—ผ๐˜‚๐—ป๐—ฑ ๐˜๐—ต๐—ฒ ๐˜„๐—ผ๐—ฟ๐—น๐—ฑ ๐—ฎ๐—ป๐—ฑ ๐˜„๐—ถ๐—ป ๐—ด๐—ฟ๐—ฒ๐—ฎ๐˜ ๐—ฝ๐—ฟ๐—ถ๐˜‡๐—ฒ๐˜€!

The #KalmarCTF 2025 is on the horizon, and Kalmarunionen is ready to raise the bar once again. Mark your calendars for March 7th - 9th, 2025, and gear up for a 48-hour showdown of skill, and pure CTF grit.

๐‡๐ž๐ซ๐žโ€™s ๐ฐ๐ก๐š๐ญโ€™s ๐ข๐ง ๐ฌ๐ญ๐จ๐ซ๐ž:
With a generous nod to @HexRaysSA for making the coveted #IDAPro licenses possible, we promise an unforgettable event brimming with complex challenges in binary exploitation, reverse engineering, and other classic #CTF categories.

๐Ÿฅ‡ First Place: 3x IDA Pro Named Licenses* with 2 Decompilers each
๐Ÿฅˆ Second Place: 2x IDA Pro Licenses* with 2 Decompilers each
๐Ÿฅ‰ Third Place: 1x IDA Pro License* with 2 Decompilers

Why join hashtag #KalmarCTF 2025?
- Test yourself against top global teams and except some fun and original challenges
- Immerse yourself in a thriving community of passionate CTF players and hackers.

If youโ€™re ready to push your limits, claim your glory, and maybe take home some serious #HexRays loot, head over to KalmarC.TF for all the details.
REassemble your dream team, and lets see who takes all home the licenses this year.

#hacking #cybersecurity #CTF

A promotional banner for KalmarCTF 2025, a cybersecurity Capture The Flag (CTF) competition. The event takes place from Friday, March 7, 2025, at 17:00 UTC to Sunday, March 9, 2025, at 17:00 UTC. The banner features the KalmarCTF logo with a stylized flag, a dark blue background with a world map pattern, and white text. It includes a link to more information at KALMARC.TF. Prize details mention IDA PRO licenses with decompilers, sponsored by Hex-Rays and Powered by IDA.

Client Info

Server: https://mastodon.social
Version: 2025.04
Repository: https://github.com/cyevgeniy/lmst