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 RΓΌckersbach, 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 RΓΌckersbach (near Frankfurt am Main, Germany)
Websitehttps://opensecurityconference.org
Header picturehttps://unsplash.com/photos/multi-colored-plastic-blocks-on-white-wooden-table-sKxVmcFgc8o

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

Special thanks to @Fuchskind for her Communication Cards under Creative Commons (CC BY-NC-ND) license.

They are beautiful and help people to express their needs.
Therefore we provide printed ones at the osco 2025 to support our participants, if needed.

You can also download them to print them yourself at
https://www.fuchskind.de/?nav=download&lang=en

#osco #osco25 #CyberSecurity #Security #InfoSec

[seism0saurus]

OSM Solutions, you are awesome! Thanks a lot for being a silver sponsor for the Open Security Conference 2025 - we're really happy to have you on board.

With your support, the price tag for #osco25 became a lot more affordable for everyone. Thanks a bunch! πŸ˜ŠπŸ™πŸ»

Discover OSM Solutions: https://www.osm-s.com

Learn more about all our sponsors: https://opensecurityconference.org/support/sponsors/

#osco #osco25 #CyberSecurity #Security #ITSecurity #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]

Thank you REWE digital for being a silver sponsor for the Open Security Conference 2025 - we are truly grateful for your continued support!

You really make this event more accessible for folks interested in cybersecurity. πŸ˜ŠπŸ™πŸ»

Discover #REWEdigital: https://www.rewe-digital.com/en

Learn more about all our sponsors: https://opensecurityconference.org/support/sponsors/

#HomeOfIT #IT #Retail #osco #osco25 #CyberSecurity #Security #ITSecurity #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]

A big round of applause for our silver sponsor itRISKman and @jenshoffmann! Your sponsorship of the Open Security Conference makes the event so much more affordable for everyone interested in cybersecurity - we really appreciate having you on board. πŸ˜ŠπŸ™πŸ»

Discover itRISKman: https://www.itriskman.de/

Learn more about all our sponsors: https://opensecurityconference.org/support/sponsors/

#osco #osco25 #CyberSecurity #Security #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]

We want to thank OSM Solutions for being a silver sponsor for the Open Security Conference 2025 - you're helping a lot! ✨

Your support makes #osco25 way more affordable for everyone as we're splitting the costs. We're really grateful. πŸ˜ŠπŸ™πŸ»

Discover OSM Solutions: https://www.osm-s.com

Learn more about all our sponsors: https://opensecurityconference.org/support/sponsors/

#osco #osco25 #CyberSecurity #Security #ITSecurity #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]

The registration for the Open Security Conference is only open until September 11th, two weeks from now - or until all reserved packages are gone, whatever happens first.

πŸ”” We're already rather full, so in case you're still considering, go for it rather sooner than later!

➑️ Request your osco package here: https://register.opensecurityconference.org

#osco #osco25 #CyberSecurity #Security #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]

Today is Women's Equality Day, a day celebrated in the US and a day important everywhere. Or shall we say it's a reminder of the inequality and inequity that's still prevalent across the world for folks who are not white cis men? Yes, we shall. We all need to do better. Today we learn again.

When white women were granted the right to vote in the US: https://en.m.wikipedia.org/wiki/Women%27s_Equality_Day

When white women were granted the right to vote in various countries: https://en.m.wikipedia.org/wiki/Timeline_of_women%27s_suffrage

When nearly everyone was granted the right to vote across the world: https://en.m.wikipedia.org/wiki/Universal_suffrage

Let's continue leveling the playing-field, for everyone.

#WomensEqualityDay #GenderEquality #VotingRights #osco #osco25 #CyberSecurity #Security #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]

We want to thank REWE digital for their continued sponsorship of the Open Security Conference - you're awesome!

You helped us make #osco24 more affordable for folks interested in cybersecurity, and the same applies for #osco25. Your support gets us a big step closer and we're grateful. πŸ˜ŠπŸ™πŸ»

Discover #REWEdigital: https://www.rewe-digital.com/en

Learn more about all our sponsors: https://opensecurityconference.org/support/sponsors/

#HomeOfIT #IT #Retail #osco #osco25 #CyberSecurity #Security #ITSecurity #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]

Huge shout-out to itRISKman and @jenshoffmann for your continued sponsorship of the Open Security Conference!

Your support already made #osco24 more affordable for folks interested in cybersecurity - and it does so as well for #osco25! Big thanks to you. πŸ˜ŠπŸ™πŸ»

Discover itRISKman: https://www.itriskman.de/

Learn more about all our sponsors: https://opensecurityconference.org/support/sponsors/

#osco #osco25 #CyberSecurity #Security #InfoSec #AppSec #ProductSecurity #OTsecurity #OpenSpace [lisi]