@opensecurityconf
Welcome to the official account of the Open Security Conference (#osco), the people-centred international gathering for everyone interested in cybersecurity. https://opensecurityconference.org/
3️⃣ months until Elbsides 2026!
2️⃣ weeks left on our CFP!
1️⃣ date to remember!
June 5th Elbsides conference in Hamburg.
Interested in sponsoring ? Message us!
www.elbsides.eu
#elbsides2026 #sponsoring #infosec #cybersecurity
Meet the full #osco team:
opensecurityconference.org/about/team/
#cybersecurity #security #InfoSec #OpenSpace [nazneen & lisi]
The #osco organizer team continues to grow 💜
As we prepare for #osco26, we are excited to welcome Daniel, Felix, Kristof, Kushaagra and Max to the organizer group 🤩
They bring fresh perspectives and energy and we are excited to shape the next edition together ☀️
Join us and help shape #osco26 [nazneen]
#OpenSecurityConference #SecurityConference #CommunityDriven
Curious about #cybersecurity but not sure where to start?
Want to host a session yourself and share what you have learned?
Save the date for the #osco2026: Nov 5 to 8, near Frankfurt, Germany ☀️
opensecurityconference.org
The schedule is created on site by the participants, for the participants.
💜 Our values: opensecurityconference.org/about/values/
📦 Our sponsor packages: opensecurityconference.org/support/spon...
💬 How to reach out: opensecurityconference.org/contact/
See you at #osco on November 5-8 in Rückersbach! 🤩
#osco26 #Security #InfoSec #AppSec #OTSecurity [lisi] 2/2
To all companies out there that value #CyberSecurity, #Community and #DEI: Are you up for supporting a unique space where all kinds of folks can share and learn together? The Open Security Conference is looking for sponsors! 1/2
Do you have a training budget? How about joining the Open Security Conference this year? 😉 As an inclusive #OpenSpace in #CyberSecurity it's a pretty unique event to be at and learn together! 🌟 Last year's recap: 2025.opensecurityconference.org/conference/r... #osco #osco26 #Security #InfoSec [lisi]
New year, new #osco! ✨ We're about to regroup and get things started for #osco26, the third edition of the Open Security Conference taking place on November 5-8. We're also super happy to welcome new organizing team members! 🤩 Stay tuned. 😉 #CyberSecurity #Security #InfoSec #AppSec [lisi]
Let's be mindful and considerate - and help each other to move the needle. Now and in 2026. 💜
#osco #osco26 #CyberSecurity #Security #InfoSec #AppSec #ProductSecurity #OTsecurity [lisi] 2/2
The year 2025 is slowly coming to an end.
End of years can be joyful and relaxing, exciting and wholesome, full of reflection and gaining energy for the new year. This time can also be lonely and sad, incredibly stressful and terribly difficult to navigate, with folks barely making it through. 1/2
... (and finally:)
✅ Save the dates for #osco26 on November 5-8, 2026! 😉
#CyberSecurity #Security #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]
2/2
You're curious how the past editions of #osco turned out? We've got you covered! 🙌🏻
🎉 This was #osco25! Check out our recap: 2025.opensecurityconference.org/conference/r...
💜 Gain impressions from all conferences: opensecurityconference.org/about/past-c...
... (wait for it...)
1/2
second time's already the charm | A Tester's Journey: Open Security Conference 2025 - Marvelous Momentum www.lisihocke.com/2025/10/open... #osco #osco25
We're feeling hopeful with you. 🌞 [lisi]
That would be beyond awesome! Crossing fingers for all of us. 🤞🏻 [lisi]
Oh no, that's too unfortunate! Totally understandable though, as much as we would love to have you. We're still clarifying dates for 2027, hoping those will fit well 🍀 [lisi]
Huge thanks to everyone for coming and contributing and sharing so much invaluable feedback - this gives more energy than you might realize. Lots of love also for my fellow organizers to make this unique event called #osco happen! My heart is full. ❤️ 2/2
Last lunch conversation was had, last train ride was shared. Now #osco25 is slowly starting to fade out and form fond memories. What a wonderful time we had together the last four days. 1/2
Continued with me giving a super relaxed version of my workshop "Secure Development Lifecycle Applied - How to Make Things a Bit More Secure than Yesterday Every Day". Seems folks had fun practicing together. 🎉 #osco gave just the right space and crowd for it. 2/2
Wow. Even the last morning of #osco25 was enlightening. 💡 Started with insightful breakfast conversations on company cultures and reward systems driving behavior. 1/2
On the last leg of my journey, got all trains, left roughly on time and now omw back to Berlin from #OSCo25. Had a blast, thank you to everyone, you created a truly unique event!
Photo of an illuminated sign with the osco conference logo
Group photo of a group of six people cheering in front of a pixel graphic image saying „Winner“ and showing a number 1 trophy. One of them (me) is holding a large inflatable dice.
(Partially) monochrome photo of a group of people flying a kite on a meadow
On my way back home after an amazing (prolonged) weekend at @OSCo.
It was wonderful connecting with new faces, deepening existing relationships, and gaining valuable insights through exchange and discussion.
A huge thank you to the organizing team, the hotel […]
[Original post on chaos.social]
Yes. Yes, you've seen correctly. There's going to be an Open Security Conference 2026! 😍
🗓 Save the dates: November 5-8, 2026. ✅
opensecurityconference.org
#osco #osco26 #CyberSecurity #Security #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]
We're so glad to have you all. See you at #osco26! 🤩
opensecurityconference.org
#osco #osco25 #CyberSecurity #Security #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]
3/3
🌟 Huge thanks to all our participants - you did indeed co-create an amazing experience for us all!
🌟 Big kudos to our sponsors for making this more affordable for everyone in the first place!
🌟 Much love and praise to our fabulous venue and their amazing staff for supporting us throughout!
2/3
It's a wrap. Yes, that's it. The Open Security Conference 2025 is officially over. 😌
1/3
We're very much looking forward to seeing lots of these folks again in 2026. 😊
opensecurityconference.org
#osco #osco25 #CyberSecurity #Security #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]
2/2
It's the last day, the last morning of the Open Security Conference 2025. We've learned so much together these days. Now's the time to go deeper into some of those topics, spend the rest of the time for networking, relax and breathe this community spirit.
1/2
Finally, finished the day with playing games and having great conversations. 💜 Very grateful for such a kind human crowd. And based on the feedback received so far, it wasn't only me having a great time at #osco! 🤩 4/4