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2025 - Four Weeks of Wins: Kalmarunionen Takes 1st Place at Hack.lu CTF! πŸ† 2025 - Kalmarunionen Wins Google Hackceler8 in Mexico City πŸ†πŸ‡²πŸ‡½ 2025 - We did it: Kalmarunionen just won ASIS CTF - our 4th ASIS WIN! 2025 - 2nd at GoogleCTF, Mid-Season World #1 - and a visit from the Minister! 2025 - Triple CTF Weekend 2025 - KalmarCTF 2025 - Kalmarunionen is now officially the #1 competitive hacking team in the world! 2024 - Chaos Communication Congress (38C3) HXP CTF 2024 - SECCON CTF 2024 - Cybersecurity Awareness Month 2024 - Google CTF 2024 - Aim for DEFCON Glory - Call for sponsors 2024 - Kalmar CTF 2024 - Real World CTF
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ASIS CTF - xtr BambooFox CTF: The Vault BSidesSF 2021: Log 'em All De Danske Cybermesterskaber: 80s Commitments De Danske Cybermesterskaber: Kuuuurveen FaustCTF 2021 - Attack & Defense - thelostbottle Hack.lu CTF - Nodenb LKVM Escape MidnightSun Quals: kgbfskfsb MidnightSun Quals: Revver Pwn2win - Hackus Qiling Sandbox Escape Real World CTF 4th: Secured Java SekaiCTF 2023 - Leakless Note Sudo Exploit Writeup Union CTF 2021: Cr0wnAir
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  • 2024 - Google CTF

    calendar June 23, 2024 Β· 2 min read Β· linkedin Google CTF 2024  Β·
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    πŸ† We just won Google’s hacking competition 2024 - Google CTF! πŸ†

    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 …


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  • 2024 - Aim for DEFCON Glory - Call for sponsors

    calendar April 11, 2024 Β· 1 min read Β· linkedin PlaidCTF UMDCTF Midnight Sun 2024  Β·
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    πŸš€ Kalmarunionen and Norsecode Aim for DEFCON Glory – Sponsors Needed! πŸš€

    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).

    🌟 …


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  • 2024 - Kalmar CTF

    calendar March 11, 2024 Β· 1 min read Β· linkedin KalmarCTF 2024  Β·
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    🚨 Hackers, get ready! 🚨 πŸŽ‰ Kalmarunionen is thrilled to bring back our #KalmarCTF challenge! πŸŽ‰

    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.πŸ†

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


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  • 2024 - Real World CTF

    calendar January 28, 2024 Β· 2 min read Β· linkedin Real World CTF 2024  Β·
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    πŸ† #1 at Real World CTF, πŸ₯‡ #1 on CTFtime (Global world ranking 2024) and πŸ’° $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 Γ…lborg Universitet in Copenhagen and online to tackle the first highly …


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Recent Posts

  • 2025 - Four Weeks of Wins: Kalmarunionen Takes 1st Place at Hack.lu CTF! πŸ†
  • 2025 - Kalmarunionen Wins Google Hackceler8 in Mexico City πŸ†πŸ‡²πŸ‡½
  • 2025 - We did it: Kalmarunionen just won ASIS CTF - our 4th ASIS WIN!
  • 2025 - 2nd at GoogleCTF, Mid-Season World #1 - and a visit from the Minister!
  • 2025 - Triple CTF Weekend
  • 2025 - KalmarCTF
  • 2025 - Kalmarunionen is now officially the #1 competitive hacking team in the world!
  • 2024 - Chaos Communication Congress (38C3) HXP CTF

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Kalmarunionen is proudly sponsored by:

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