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Open Security Conference @opensecurityconf.bsky.social · 29/09/2026

The Open Security Conference has a clear goal: offer a welcoming space for all people who are interested in cybersecurity, want to exchange knowledge and learn with each other. We want to get rid of gatekeeping in the industry and help each other grow. 1/2

opensecurityconference.org

Values

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.

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Open Security Conference @opensecurityconf.bsky.social · 23/09/2026

Every bit of support counts and today we want to celebrate our #osco26 bronze sponsors. A heartfelt thank you to: 🧡 BRANDAD Group AG 🧡 DocuWare 🧡 Lutra Security And a special thank you to our community sponsor, Privacy Minded (Raphael Albert), for being part of this effort!

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Open Security Conference @opensecurityconf.bsky.social · 21/09/2026

itRISKman is yet again supporting #osco as a silver sponsor and we are very grateful to have @jenshoffmann.bsky.social and itRISKman part of the community. Their support helps us keep osco affordable & accessible, so more people can take part in open, community driven security conversations.

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Open Security Conference @opensecurityconf.bsky.social · 17/09/2026

We are grateful to have REWE digital supporting #osco again as a silver sponsor. Their contribution helps us create a conference where people from different backgrounds can come together and take part in the conversations that shape the programme.

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Open Security Conference @opensecurityconf.bsky.social · 15/09/2026

osco is made possible by a community that is willing to support it and we are grateful to have OSM Solutions with us again as a silver sponsor for #osco26. Thank you for helping us create a space where people can exchange knowledge and have open conversations about #CyberSecurity.

osm-s.com

Home | OSM Solutions

We provide expert knowledge and tailored technical solutions, including managed services, to comprehensively address your cybersecurity and compliance needs.

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BOB Konferenz @bobkonf.de · 10/09/2026

#BOBkonf registration is now open! Come and get your massively reduced pig-in-a-poke ticket to #BOBkonf2027: bobkonf.de/2027/registr...

bobkonf.de

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Open Security Conference @opensecurityconf.bsky.social · 10/09/2026

Have we told you how proud we are to have amazing keynotes for #osco26 in store for you? 🤩 💡 "The Day Everything Stops: Preparing for the Cyber Crisis You Hope Never Comes" by Stephanie Carstensen 💡 "Building a Penetration Testing Lab in 2026" by Jahmel Harris 1/2

opensecurityconference.org

Keynotes

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.

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BOB Konferenz @bobkonf.de · 03/09/2026

The #BOBkonf2027 Call for Contributions is live! We're accepting submissions until 2 November 2026. More information regarding the call can be found here: bobkonf.de/2027/cfc.html

bobkonf.de

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Open Security Conference @opensecurityconf.bsky.social · 28/08/2026

Registration for the Open Security Conference 2026 just closed! To everyone looking for a chance on a last minute package: join our waiting list, you've got nothing to lose! 🍀 opensecurityconference.org/conference/r... #osco #osco26 #Security #CyberSecurity #InfoSec #AppSec #OTSecurity [lisi]

opensecurityconference.org

Registration

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.

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Open Security Conference @opensecurityconf.bsky.social · 26/08/2026

Women's Equality Day is a good opportunity to ask a simple question: Are we actually creating equal opportunities or are we only removing the most visible barriers? Equality is also about the work we do not always notice.

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Open Security Conference @opensecurityconf.bsky.social · 24/08/2026

We're down to the last tickets for the Open Security Conference 2026. Take your chance now! opensecurityconference.org/conference/r... Please know we'll open a waiting list so you might still get a ticket in case we receive a cancellation. #osco #osco26 #Security #CyberSecurity #InfoSec [lisi]

opensecurityconference.org

Registration

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.

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Open Security Conference @opensecurityconf.bsky.social · 27/07/2026

Hi, I volunteered for the position of the beloved Open Security Conference mascot. A perfect candidate right from the start, with my name literally being the abbreviated conference name. My (not so) secret dream is to have little plush monkey versions of themself offered as conference swag!

osco, the monkey with purple eyes and fur at the head and tip of their tail. They are the mascot of the Open Security Conference. They are hugging a purple flame with a lock in it. The style of the flame is often used in the logos of unconferences.

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Open Security Conference @opensecurityconf.bsky.social · 24/07/2026

It's International Self-Care Day. Yep, that special day that's exactly on July 24th as self-care is a 24/7 topic. Look after yourself. Even if you feel the urge to take care of others first, you are worthy of care, you are worthy to be taken care of first and by yourself. 1/3

The image shows a digital drawing of the Open Security Conference mascot named Osco. They are a medium brown monkey with a purple flame on top of their head and at the tip of their tail, as well as bright, purple eyes. Osco is sitting on the ground and smiling at us with rosy cheeks while holding a light red heart showing the words "Self Care".

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Open Security Conference @opensecurityconf.bsky.social · 21/07/2026

So many of you already registered for #osco26 and we love seeing it! 🤩 If you're among those who are still thinking about whether the Open Security Conference is for you, please know that only a few more tickets are available! So here's a little decision helper: ... 1/3

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Open Security Conference @opensecurityconf.bsky.social · 20/07/2026

We're proud to announce a new #osco partner! 😍 Check out BrewtCon: they're an unconference as well, they're also community-driven, and they're valuing diversity and inclusion, too. Plus we think they're awesome. Their mission: build a community in Belgium for Testers & Quality professionals. 1/2

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Open Security Conference @opensecurityconf.bsky.social · 16/07/2026

Huge kudos go out to Socotra Williams (www.linkedin.com/in/socotra-w...) for facilitating an insightful retrospective for our #osco organizer team! 💜 1/3

linkedin.com

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Open Security Conference @opensecurityconf.bsky.social · 15/07/2026

We've already presented our silver sponsors, yet did you know we also have fabulous bronze sponsors for the Open Security Conference 2026? 🤩 🧡 BRANDAD 🧡 DocuWare 🧡 @lutrasecurity.infosec.exchange.ap.brid.gy All of them help make #osco more inclusive and we're truly grateful. 1/2

opensecurityconference.org

Our Sponsors

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.

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Open Security Conference @opensecurityconf.bsky.social · 14/07/2026

It's International Non-Binary People's Day! 🎉 Did you know that the date was chosen for being precisely midway between International Women's Day and International Men's Day? Despite the impression this may give, gender is not on a scale at all. 1/3

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BOB Konferenz @bobkonf.de · 08/07/2026

Save the date: #BOBkonf2027 takes place Friday, 26 February 2027, at Scandic Hotel Potsdamer Platz in Berlin! Until then, why not re-watch some (or all!) of the excellent talks from previous conferences on our website? You can find them via bobkonf.de/archive/ #BOBkonf

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BarcampListe @barcamp-liste.de · 13/07/2026

Neu gelistet: Open Security Conference 🔐 Vom 5. bis 8.11.2026 in #Johannesberg Cybersecurity für alle – vom Einstieg bis Expert*in. Penetration Testing, Secure Software, Cloud Security & mehr. @opensecurityconf.bsky.social #Barcamp #osco #osco26 #Cybersecurity

opensecurityconference.org

Zur Webseite von Open Security Conference

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Open Security Conference @opensecurityconf.bsky.social · 13/07/2026

The details for our second keynote just dropped! 🤩 Jahmel Harris will share his insights on "Building a Penetration Testing Lab in 2026" and we're here for it. Check out the full description here: opensecurityconference.org/conference/k... 1/2

opensecurityconference.org

Keynotes

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.

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BOB Konferenz @bobkonf.de · 10/07/2026

Our partner conference @opensecurityconf.bsky.social takes place in November, and registration for OSCO 2026 is now open! If you're interested in security, OSCO offers a relaxed, diverse open space format for you to meet like-minded folks. More information: register.opensecurityconference.org

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.

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Open Security Conference @opensecurityconf.bsky.social · 10/07/2026

Hi there, Sadly we had a server outage this night but it was fixed in the morning during breakfast 🥐 ☕️ If you are a creature of the night and wanted to access our homepage or registration, I'm sorry for the inconvenience. Please try again. kind regards [uli]

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Open Security Conference @opensecurityconf.bsky.social · 09/07/2026

Huge kudos to OSM Solutions for being a silver sponsor the Open Security Conference also for the 2026 edition! 🩶 We really appreciate their continued support in offering this event to even more folks interested in #CyberSecurity. Discover OSM Solutions: www.osm-s.com 1/2

osm-s.com

Home | OSM Solutions

We provide expert knowledge and tailored technical solutions, including managed services, to comprehensively address your cybersecurity and compliance needs.

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Open Security Conference @opensecurityconf.bsky.social · 08/07/2026

Big shout-out to REWE digital for their continued silver sponsorship of the Open Security Conference! 🩶 Their support helps people gain access to #CyberSecurity matters, no matter their own background. We're truly grateful! Discover #REWEdigital: www.rewe-digital.com 1/2

rewe-digital.com

REWE digital: Your Home of IT

We develop software that inspires. Join us in shaping the digital future of retail for millions of people. ▶ Are you ready? Then come and join us!

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Open Security Conference @opensecurityconf.bsky.social · 07/07/2026

Huge thanks to our silver sponsor from day 1: itRISKman and @jenshoffmann.bsky.social! 🩶 We're immensely grateful for their continued support. They literally keep the Open Security Conference more affordable for everyone interested in cybersecurity. Discover itRISKman: www.itriskman.de 1/2

itriskman.de

IT Risk Man

We use cookies to optimize our website and our service. (data protection)

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Open Security Conference @opensecurityconf.bsky.social · 06/07/2026

So many registrations already came in within the first days! 🤩🎉 Keep them coming, we're ready. 😉 ➡️ opensecurityconference.org/conference/r... If you're wondering whether the Open Security Conference would be for you, ... 1/2

opensecurityconference.org

Registration

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.

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Open Security Conference @opensecurityconf.bsky.social · 01/07/2026

It's that time of the year! 🎉 The registration for the Open Security Conference 2026 is officially open. 🗓️ 5-8 November 2026 📌 Rückersbach, Germany (close to Frankfurt am Main) ➡️ opensecurityconference.org/conference/r... #osco #osco26 #Security #CyberSecurity #InfoSec #AppSec #OTSecurity [lisi]

opensecurityconference.org

Registration

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.

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BOB Konferenz @bobkonf.de · 29/06/2026

Video of Hannes Mehnert's #BOBkonf2026 talk "Run your own digital infrastructure using MirageOS unikernels" is now up on our website! bobkonf.de/2026/mehnert... #BOBkonf

bobkonf.de

BOB - Run your own digital infrastructure using MirageOS unikernels

BOB Konferenz, Best of Breed Konferenz für Software-Entwickler und Entscheider in der Softwareentwicklung.

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BOB Konferenz @bobkonf.de · 05/06/2026

Ariadne Engelbrecht's #BOBkonf2026 talk "Accessibility by Design: Practical A11y for Everyday Software Engineering" is now available online! bobkonf.de/2026/engelbr...

bobkonf.de

BOB - Accessibility by Design: Practical A11y for Everyday Software Engineering

BOB Konferenz, Best of Breed Konferenz für Software-Entwickler und Entscheider in der Softwareentwicklung.

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BOB Konferenz @bobkonf.de · 19/06/2026

Video of Julia Himmel's #BOBkonf2026 talk "Proofs for programs, programs for proofs" is now up on our website! bobkonf.de/2026/himmel....

media.ccc.de

Proofs for programs, programs for proofs

Proofs about programs are great, but what happens if we let programs and proofs interact in both directions? Lean is both a programming l...

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Open Security Conference @opensecurityconf.bsky.social · 18/06/2026

Psst! We're busy preparing everything to open the official registration for #osco26. If you want to get informed once it's open so you can get first in line, just provide your email address via the pre-registration: opensecurityconference.org/conference/r... 😉 See you at #osco!

opensecurityconference.org

Registration

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.

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Open Security Conference @opensecurityconf.bsky.social · 16/06/2026

Did you know that there's a really cool online open space conference out there? That it's free? And an #osco partner? 🎉 Well, if you didn't know, now you know! We wholeheartedly recommend to check out the Friends of Good Software Conference: frogsconf.nl 1/2

frogsconf.nl

Friends of Good Software Conference

Friends of Good Software (FroGS) - Tuesday 30 June 2026 16:00 CEST (lean coffee)

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Open Security Conference @opensecurityconf.bsky.social · 16/06/2026

We could not have said it better! 🤩 We're super happy to have you on board. So here's a huge thanks and shout-out to @lutrasecurity.infosec.exchange.ap.brid.gy for sponsoring #osco26! 🎉 [lisi]

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Lutra Security @lutrasecurity.infosec.exchange.ap.brid.gy · 15/06/2026

At Lutra Security, we're convinced that we can only protect against cyber threats if work together. The foundation on which we all build is the collective sharing of knowledge and experience. Therefore, we are happy to announce that we are sponsoring the Open Security Conference 2026. @OSCo is […]

infosec.exchange

Original post on infosec.exchange

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Open Security Conference @opensecurityconf.bsky.social · 11/06/2026

We're super proud to announce our second keynote speaker for #osco26! 😊 Please welcome Jahmel Harris. He's not only a professional ethical hacker, he's also been contributing to community initiatives for way longer than we can think. 1/2

opensecurityconference.org

Keynotes

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.

131

Open Security Conference @opensecurityconf.bsky.social · 10/06/2026

It's finally time to announce our first keynote speaker for #osco26! 🤩 We're more than happy to have Stephanie Carstensen with us this year. She's specializing in #OTsecurity and industrial cybersecurity and shares her a vast experience in her keynote ... 1/2

opensecurityconference.org

Keynotes

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.

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Open Security Conference @opensecurityconf.bsky.social · 04/06/2026

We're super glad to announce that we've joined the #RainbowHat initiative! 🌈🤩 The Open Security Conference is founded on shared values, so we're glad we can support the growing #RHSafeHarborNetwork. Check out the RainbowHat charter and learn more on their website: rainbowhat.org #osco #osco26 [lisi]

rainbowhat.org

RainbowHat – RainbowHat – your safe harbor in cybersecurity community

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Elbsides @elbsides.bsky.social · 02/06/2026

📣 🚨 Elbsides conference 2026 is sold out 🚨 📣 Registration for the workshop day on June 4th is closed too. If you didn't get a ticket for either day, consider our fellow partner conferences: BSides Frankfurt(Sept 10-11, 2026),Open Security Conference(Nov 5-8, 2026) and BSides Munich(Nov 7 & 9, 2026)

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BOB Konferenz @bobkonf.de · 02/06/2026

Thanks to CCC generously hosting, the videos for recorded talks from #BOBkonf2026 are going up! We're kicking this off today with Stefan Kaufmann's keynote "'Digital Sovereignty' – Searching for Meaning in a Magical Concept". Find the video, slides, etc here: bobkonf.de/2026/stk.html

bobkonf.de

BOB - Keynote: „Digital Sovereignty“ – Searching for Meaning in a Magical Concept

BOB Konferenz, Best of Breed Konferenz für Software-Entwickler und Entscheider in der Softwareentwicklung.

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SoCraTes DE @socrates-conference.de · 27/05/2026

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Elbsides @elbsides.bsky.social · 28/05/2026

‼️Some tickets still available for our workshop day June 4th- don't miss the opportunity to learn about Secure development lifecycle, exploit and secure AI applications on AWS, investigate MacOS, understand modern application security or make hackers cry..with deception!‼️ Ticketshop: lnkd.in/ebD_6cmT

lnkd.in

This link will take you to a page that’s not on LinkedIn

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Open Security Conference @opensecurityconf.bsky.social · 01/06/2026

Pride. Existing just as we are, in whatever beautiful variations we own, in whatever ways we want to show for whatever reasons - throughout the year. This Pride Month, though, that's the month to remember the past, challenge the present and craft potential futures. 1/3

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Open Security Conference @opensecurityconf.bsky.social · 28/05/2026

📣 New partner announcement: We're super happy to share that we partnered up with BSides Luxembourg! 🤩 This year's #BSidesLuxembourg2026 had just concluded and it was a blast. We loved the #community spirit of everyone interested in cybersecurity sharing and learning together. 1/2

bsides.lu

BSides Luxembourg 2026 — Cybersecurity Conference | May 6–8 in Belval

BSides Luxembourg 2026 Cybersecurity Conference BSidesLuxembourg2026 BSidesLU BSidesLux lu lux 2026

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Open Security Conference @opensecurityconf.bsky.social · 26/05/2026

Did you know that the Open Security Conference originated at the SoCraTes conference? If you didn't, now you know. 💡 Which makes us even happier to announce that we officially partnered up with @socrates-conference.de! 🤩 1/2

socrates-conference.de

SoCraTes Conference

International Conference for Software Craft and Testing

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Elbsides @elbsides.bsky.social · 22/05/2026

Come to Jungheinrich on June 4th, the day before Elbsides 2026 conference: Tickets available here: pretix.eu/elbsides/elb... (2/2)

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Elbsides @elbsides.bsky.social · 22/05/2026

💡 Everyone is talking about AI & your boss wants you to roll out an assistant in your apps. Want to know how to make sure it’s secure? Come to this 4h workshop on June 4th! You’ll learn how attackers target AI systems, and how to design safer architectures for real-world AI applications in AWS(1/2)

shorturl.at

Elbsides Workshops 2026

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

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Open Security Conference @opensecurityconf.bsky.social · 21/05/2026

We're celebrating Global Accessibility Awareness Day! Accessible design helps everyone. We need access to technology and infrastructure when we're injured, when we're low on mental capacity, when we're in a crisis situation. We're encouraging you to learn one new thing about accessibility today. 1/4

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