You're curious how the past editions of #osco turned out? We've got you covered! 🙌🏻

🎉 This was #osco25! Check out our recap: https://2025.opensecurityconference.org/conference/recapitulation/
💜 Gain impressions from all conferences: https://opensecurityconference.org/about/past-conferences/
✅ Save the dates for #osco26 on November 5-8, 2026! 😉

#CyberSecurity #Security #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]

Looking at my feed, it seems like there's quite an overlap of #OSCo25 and #BSidesMunic2025 attendees ^^'

We at @intcube managed to also attend both, but with different people :D

Wishing everybody at BSides a lovely Monday!

Finally, I found the time to write and publish my summary of #osco25

It felt good writing it down, especially the non-chronological part ;)

"Open Security Conference 2025 — A magical place"

https://blog.maschmi.net/Osco2025/

RE: https://mastodon.social/@lisihocke/115369193302147350

It was such a wonderful conference. Thank you and your fellow organisers so much for creating this space!

Reading this blog article just let me re-live part of it. Can't wait for next year :)

#osco #openspace #osco25 #security #cybersecurity

One thing I had a look at #osco25 were card games in #cybersecurity. Lucky for me "Cumulus" was offered as merch. Had to order some more, though.

Can't wait to play those games at work and educate myself and colleagues about #threatModelling.

Not sure if I should hope for finding blind spots. That might lead to bad sleep ;)

There’s an idea I’ve had in my mind for a while, and @0xKristof 's ‘Dark OSINT’ talk at #osco25 was the last push I needed to commit to it.

I’ve been thinking about building a training or workshop for kids aged 12-14, so around when they start getting a hold of a phone and having an online presence.

I want to educate them on security, privacy, understanding how social media works and giving them tools to master it, before it masters them.

I would love to hear opinions on what content you think should be there, what worked for you or your kids. Do you know any game or examples that can help learn about best practices to keep online? Any suggestions or stories are welcome🙏🏼

The Open Security Conference 2025 is over. It was a blast. It was great co-organising it and to receive so much positive feedback.

One feedback especially stuck with me (paraphrasing):
"I wouldn't have come if you hadn't specifically invited me. I was very sceptical. How can a conference without a schedule work? Who will speak there? What topics will there be discussed?
This scepticism is gone and I'm convinced. I'll definitely will be back next year!"

Some participant AFAIK made short videos about their experience (and their surprises)

The scepticism is totally understandable if you don't know or never experienced an Open Space event.

We don't have big names to advertise the @OSCo (there are only two keynotes with a name attached at all)
There is no list of topics which will be presented (participants will speak about the topics they are interested in. And the hip topics during the creation of the schedule might not be the hot topics during the event)

This sounds confusing if you only know traditional conferences. But what I can basically guarantee is that you will be surprised (in a positive way :-P).
If you know the expression Hallway Con and Open Space is maybe best described as #HallwayCon on steroids. It leaves out all the hindering scheduled presentations leaving the entire time available for dialogues arising by serendipity.

If you want to learn more about #OpenSpace and the Open Security Conference, checkout the #osco25 (or also #osco2025) hashtag to get an impression (here as well as on LinkedIn eg https://www.linkedin.com/search/results/content/?keywords=%23osco25&origin=FACETED_SEARCH&sortBy="date_posted")

This weekend, I had the chance to attend #osco25, and I discovered I needed a Mastodon account. So here I am!

Thanks again for the wonderful sessions and great talks.