🎉 Kalmarunionen is back with another electrifying edition of #KalmarCTF! 🎉

Last year was a blast, and we’re dialing it up yet again. Mark your calendars for March 7th - March 9th, 2025 – 48 hours of relentless hacking, mind-bending challenges, and a battle for ultimate CTF glory.

🎉 We Did It! 🎉

Kalmarunionen is now officially the #1 competitive hacking team in the world! 🏆

✨ The Road to #1

It’s been an incredible journey since we started in 2020, climbing our way up the global rankings on CTFtime.org:

• 2020: 66th place
• 2021: 15th place
• 2022: 10th place
• 2023: 3rd place
• 2024: 1st place 🚀

So many …

We just won the Chaos Communication Congress (38C3) HXP CTF in Hamburg - ending the year in style and securing our qualification for DEF CON Finals 2025!

The Chaos Communication Congress (38C3) is the 38th installment of this renowned conference, where 14,000 security enthusiasts gather every year between Christmas and …

This weekend, we had our last big meetup in Copenhagen for the year, and it was a blast! 🎉

We had a fantastic time participating in the SECCON CTF, where we secured a top 10 placement. The challenges were engaging, and it was great to see so many new players testing out for the team. There’s a lot of promising …

Prioritizing and securing your OT infrastructure isn’t just a good idea—it’s essential for protecting our critical systems. Here’s an example of why:

It’s Cybersecurity month, and of course, Kalmarunionen want to showcase our talent! Although Operational Technology Security isn’t …

🏆 We just won Google’s hacking competition 2024 - Google CTF! 🏆

We are thrilled to announce that we have emerged victorious in the Google CTF, securing the top spot on CTFtime.org Global CTF Ranking, earning $12,345 in prize money from Google, and ensuring our place at the Google Hackceler8 finals in Malaga later …

🚀 Kalmarunionen and Norsecode Aim for DEFCON Glory – Sponsors Needed! 🚀

This weekend, Kalmarunionen collaborates with our Nordic peers at meetup in Copenhagen under the #Norsecode flag to qualify for the prestigious DEFCON finals. To qualify last year we fought right to the end (check out video from the post).

🌟 …

🚨 Hackers, get ready! 🚨 🎉 Kalmarunionen is thrilled to bring back our #KalmarCTF challenge! 🎉

Last year was epic, and we’re doing it all over again. Thanks to Hex-Rays, we’ve got those sweet #IDAPro licenses for our #ctf winners.🏆

Whether you’re here to defend your title or to claim a new one, …

🏆 #1 at Real World CTF, 🥇 #1 on CTFtime (Global world ranking 2024) and 💰 $10,000 in winnings after our first meetup.

We had a lot of fun playing Real World CTF 2024 (Beijing Chaitin Technology Co., Ltd.) this weekend. #Kalmarunionen team met up at Ålborg Universitet in Copenhagen and online to tackle the first highly …