Open Security Conference

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Welcome to the official account of the Open Security Conference (#osco), the people-centred international gathering for everyone interested in cybersecurity.

Osco presents a different concept of security conference - literally from the community, for the community! It offers a platform to ease the learning curve in cybersecurity and provides the opportunity to learn, discuss, and teach.

#osco25 is over. #osco26 awaits!
Join us November 5-8, 2026 in Rückersbach, Germany. Visit our website to learn more, and follow to stay up-to-date.

Run by @0xKristof, @cisokeener, Daniel, @hans, @Gronner (gr), @IsItArtOrTrash, Kush, @lisihocke (lisi), @nazneenr, @realn2s (cl), and @seism0saurus (seism0saurus)

#Cybersecurity #Security #InfoSec #AppSec #OTsecurity #Diversity #Equity #Inclusion #DEI #OpenSpace

Date2026-11-05 - 2026-11-08
LocationSeminarzentrum Rückersbach (near Frankfurt am Main, Germany)
Websitehttps://opensecurityconference.org
Header picturehttps://unsplash.com/photos/multi-colored-plastic-blocks-on-white-wooden-table-sKxVmcFgc8o

Wondering what an Open Security Conference actually feels like?

Take a look at impressions from previous editions:
https://opensecurityconference.org/about/past-conferences/
and here is our recap of #osco25:
https://2025.opensecurityconference.org/conference/recapitulation/

If you are curious about open, practitioner driven security discussions, this will give you a good idea of what to expect.
See you at #osco26.

#Cybersecurity #OpenSpace #SecurityCommunity
[nazneen]

Past Conferences

Welcome to the Open Security Conference (osco), the people-centred international gathering for everyone interested in cybersecurity. Join us 5-8 November 2026 in Rückersbach, Germany.

Open Security Conference

@OSCo @swec

I will also be at the swec as a participant. If you have questions about osco or security stuff, you can ask me there in real life.

Nach dem SWEC Lust auf mehr? Wenn Du mehr über Cybersecurity lernen möchtest und gemeinsam mit
 anderen Interessierten diskutieren oder Dein Wissen teilen willst ist unsere
 Partnerkonferenz @OSCo genau das richtige!



Die Open Security Conference ist ein internationales Treffen in Rückersbach für alle Cybersecurity-Interessierten im Open Space Format. Sie wird also wortwörtlich von der Community für die Community gestaltet!


Mehr zur OSCO hier: https://opensecurityconference.org/

 #osco #osco26

We have a new partner and a special recommendation for you: The Software Engineering Camp (SWEC) is an open space conference on all things software engineering and craftship! 🤩

Since 2016 the @swec provides the opportunity to learn, socialize and grow with a diverse community of techies and nerds. They want to make the world a better place. They SWEC to differ, because code does not make a difference – but we all do!

https://www.swe-camp.de/

#swec2026, #swec #osco26 #osco [lisi]

SWEC | Das Dev-Barcamp | WE. ARE. SWEC.

Time is running out ⏰ on Elbsides CfP - make sure you don't miss the deadline to submit until tomorrow, evening - Friday, March 20th.

https://www.elbsides.eu/2026/cfp/

Our review committee is looking forward to your proposal 🧐 🤩.

Call for Presentations 2026

This is the home of Elbsides, Hamburg’s premier security community driven security conference.

Elbsides

When we talk about the Open Security Conference, people often hear of the #OpenSpace format for the first time. If that's you, learn more about it here: https://opensecurityconference.org/open-space/ 💡

We also offer keynotes - the first is already confirmed! 🤩

#osco #osco26 #CyberSecurity #Security [lisi]

Open Space

Welcome to the Open Security Conference (osco), the people-centred international gathering for everyone interested in cybersecurity. Join us 5-8 November 2026 in Rückersbach, Germany.

Open Security Conference

Let us introduce you to another great conference that deserves more recognition!

The Open Security Conference ( @OSCo ) is a people-centred international gathering in Rückersbach (Germany) for everyone interested in cybersecurity.

As an open space, Osco presents a different concept of security conference - literally from the community, for the community. You know, as cool conferences do ;-)

It offers a platform to ease the learning curve in cybersecurity and provides the opportunity to learn, discuss, and teach.

Please check out their website here:
https://opensecurityconference.org/

Home

Welcome to the Open Security Conference (osco), the people-centred international gathering for everyone interested in cybersecurity. Join us 5-8 November 2026 in Rückersbach, Germany.

Open Security Conference

🚨 Deadline for Elbsides CFP🚨

There's just one week left to submit your proposal. Go and grab your pen/computer and dazzle 🤩 us with your idea/research in Hamburg this summer!!

https://www.elbsides.eu/2026/cfp/

Call for Presentations 2026

This is the home of Elbsides, Hamburg’s premier security community driven security conference.

Elbsides

Please join us in welcoming our first official partner conference, @elbsides! 🎉 As Hamburg’s #BSides event since 2019, their community keeps growing. They host amazing speakers from near and far, sharing their knowledge, fostering conversations and connecting people through in-person networking.

The Elbsides CfP is still open until March 20, so how about submitting a proposal? 😉
https://www.elbsides.eu/
https://opensecurityconference.org/support/partners/
#elbsides2026 #osco #osco26 #CyberSecurity [lisi]

Elbsides

This is the home of Elbsides, Hamburg’s premier security community driven security conference.

Elbsides

Today is the International Women's Day.
Let's be mindful that inequality and oppression do not stop with women. They also affect other underrepresented groups and many people belong to more than one of them.

This is a reminder that building inclusive environments in tech and cyber security still requires intention, support and action. 1/2

[lisi] [naz] [uli]

#InternationalWomensDay #inclusion #IWD2026 #intersectional