Today is #EarthDay. No matter our differences, there's one thing we all share: Earth is our home. As so many works of fiction and the daily news tell us: We better take good care of our planet.

We might not be able to change the whole world at once, and yet we can contribute within our circle of influence to make this a better place for Earth's population - each and every day.

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BSides Luxembourg 2026 – announcement of 𝗢𝗨𝗥 𝗩𝗘𝗥𝗬 𝗙𝗜𝗥𝗦𝗧 𝗖𝗧𝗙 𝗖𝗢𝗠𝗣𝗘𝗧𝗜𝗧𝗜𝗢𝗡!!

Over the last months, we've had an awesome team of volunteers building CTF challenges for you on the theme: 𝗦𝗣𝗔𝗖𝗘!

We're excited to announce that BSides Luxembourg 2026 will feature a Capture The Flag competition open to all 𝗢𝗡-𝗦𝗜𝗧𝗘 𝗔𝗧𝗧𝗘𝗡𝗗𝗘𝗘𝗦 — running across all three days of the event (May 6–8, Luxembourg). 𝗧𝗛𝗘 𝗖𝗧𝗙 𝗪𝗜𝗟𝗟 𝗢𝗣𝗘𝗡 𝗔𝗧 𝟭𝟬:𝟬𝟬 𝗪𝗘𝗗𝗡𝗘𝗦𝗗𝗔𝗬 𝗠𝗔𝗬 𝟲𝗧𝗛 𝗔𝗡𝗗 𝗖𝗟𝗢𝗦𝗘𝗦 𝗔𝗧 𝗠𝗔𝗬 𝟴𝗧𝗛 𝟭𝟯:𝟰𝟬 𝗙𝗢𝗟𝗟𝗢𝗪𝗘𝗗 𝗕𝗬 𝗔 𝗪𝗔𝗟𝗞𝗧𝗛𝗥𝗢𝗨𝗚𝗛 𝗦𝗘𝗦𝗦𝗜𝗢𝗡 𝗔𝗧 𝟭𝟰:𝟬𝟬 .

This year's CTF takes you on a space exploration mission. Navigate a galaxy of challenges spanning web, reverse engineering, forensics, OSINT, privilege escalation, and more — with difficulty levels for all skill sets.

And our awesome sponsors have provided some incentives! 𝗧𝗛𝗘𝗥𝗘 𝗔𝗥𝗘 𝗣𝗥𝗜𝗭𝗘𝗦!

In these days and times, it would make no sense to forbid you to use AIs to do the CTF, but we urge everyone to realise that if you depend on LLMs exclusively to solve challenges, this actively does not only not teach you anything, it reduces your own ability to solve challenges (scientifically proven that LLM dependence reduces ability in other fields).

A huge shoutout to 𝗟𝗘𝗧𝗭𝗣𝗪𝗡 𝗔𝗦𝗕𝗟 ( @letzpwn ) for providing the platform and infrastructure to run this CTF competition.

Prizes up for grabs:

1st: 𝗧𝗛𝗘 𝗙𝗜𝗥𝗦𝗧 𝗣𝗟𝗔𝗖𝗘 person/team gets 1 voucher for: SOC-200 OSDA (Offensive Security & Defense Analyst) provided by the Redbluealliance.com
– sponsored by SecuInfra.com ! (@SI_FalconTeam )
(𝐈𝐍-𝐏𝐄𝐑𝐒𝐎𝐍 𝐓𝐑𝐀𝐈𝐍𝐈𝐍𝐆 𝐈𝐍 𝐆𝐄𝐑𝐌𝐀𝐍𝐘)

𝟮𝗡𝗗: Linux Attack, Detection and Forensics v2.0 - Hands-on Purple Teaming Playbook provided and sponsored by Defensive-security.com!(@cr0nym )
(𝐁𝐎𝐎𝐊 + 𝐎𝐍𝐋𝐈𝐍𝐄 𝐓𝐑𝐀𝐈𝐍𝐈𝐍𝐆 𝐂𝐎𝐔𝐑𝐒𝐄)

𝟯𝗥𝗗: Linux Attack, Detection and Forensics v2.0 - Hands-on Purple Teaming Playbook provided and sponsored by Defensive-security.com! (Defensive Security)
(𝐁𝐎𝐎𝐊 + 𝐎𝐍𝐋𝐈𝐍𝐄 𝐓𝐑𝐀𝐈𝐍𝐈𝐍𝐆 𝐂𝐎𝐔𝐑𝐒𝐄)
(@cr0nym )
𝟰𝗧𝗛: Linux Attack, Detection and Forensics v2.0 - Hands-on Purple Teaming Playbook provided and sponsored by Defensive-security.com! (@cr0nym )
(𝐁𝐎𝐎𝐊 + 𝐎𝐍𝐋𝐈𝐍𝐄 𝐓𝐑𝐀𝐈𝐍𝐈𝐍𝐆 𝐂𝐎𝐔𝐑𝐒𝐄)

Positions in CTF are determined by points, if points are equal, who reached the amount of points first.

This CTF is also supported by the 𝗖𝗬𝗕𝗘𝗥𝗘𝗗𝗨𝟰𝗧𝗘𝗘𝗡𝗦 initiative from SnT, Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg — a Google.org-funded project working to bring cybersecurity education to the next generation.

A huge thank you to Nastassia Salash from SnT for making this support

Know a company that genuinely supports community driven initiatives and takes DEI seriously?

We are looking for sponsors for the #osco26, an open space, practitioner led conference near Frankfurt focused on real security conversations.

If your organization wants to support the community and be part of it, you can find more details here: https://opensecurityconference.org/support/sponsorship/

Feel free to share or connect us with the right people 💜

#securitycommunity #openspace #sponsorship
[nazneen]

Got a lightning talk idea you'd like to submit to #BSidesLuxembourg2026?

Use this @pretalx access code:: https://pretalx.com/bsidesluxembourg-2026/cfp?access_code=A7YVWLUG3RAQZDECZBFORLIGHTNINGTALKS