Thank you for speaking at the European Open Source Security Forum 2026 in Brussels, Belgium, on 9 June 2026.
This is your official event speaker guide. Please bookmark this page for easy reference and continue to check back as the event gets closer. We will be adding speaker information, such as on-site details, as it becomes available.
Please click through the tabs on this page to access information.
Important Dates & Deadlines
Speaker Registration Deadline: Friday, 1 May
Additional AV Request Deadline: Friday, 15 May
Speaker PowerPoint Presentation Deadline: Monday, 8 June
Event Date: Tuesday, 9 June
Registration
To confirm your participation and secure your speaking slot, please complete your registration by Friday, 1 May, using the details in your notification email. If you require this information again, please reach out to cfp@linuxfoundation.org.
If you have already registered for the event and are now listed as a speaker on the schedule, please reach out to our registration team.
Visa Letter Requests
If you require a visa letter, please register for the event and then complete the visa letter request form.
We also ask that you please note the following:
Provision of a visa letter by The Linux Foundation does not guarantee visa approval, as final approval is made at the sole discretion of the government of the event’s host country.
The Linux Foundation strongly recommends that you request a visa letter at your earliest convenience and contact your local Embassy/Consulate with any visa questions you may have.
The Linux Foundation processes most visa letter requests in (3) business days.
Venue INFORMATION & Getting There
Venue
European Open Source Security Forum 2026 will take place at The Dominican, Rue Leopold 9, 1000 Bruxelles, Belgium.
The schedule will be announced in early May and posted on our website via Sched.com.
If you have a conflict with the timing of your talk, find that it conflicts with the content of another talk, or are having problems uploading your bio and photo, please contact cfp@linuxfoundation.org.
AV Details + Requirements
Please note the following technical requirements:
All speakers must bring their own computers and HDMI adapters for use during their talks.
Presentation slides should be formatted in 16:9.
The room will include a screen, projector, and microphones for the speaker or panelist.
If you require any additional AV, please email Jennifer Crowley by Friday, 15 May. We will make every effort to accommodate additional AV needs; however, final approval for additional AV requests will be made on a case-by-case basis.
We have an optional PowerPoint template you can use, but it is not required.
Connecting Your Laptop to present
If you plan to use speaker notes, please follow the steps below to ensure your laptop is set up correctly. This will allow you to view your notes while the audience sees only your slides.
Before Connecting
Close all unnecessary apps & tabs
Turn off notifications
Disable Night Mode / TrueTone
Don’t enter full-screen presentation mode yet
At the podium
Plug in the HDMI cable
If needed, use your USB-C to HDMI adapter
On Mac, click “Allow” if prompted
Use “Extended Display” mode (not Mirrored)
Using MAC
Go to System Settings > Displays
Click the “Arrangement” tab
Make sure “Mirror Displays” is unchecked
Using PC
Press ⊞Win + P, then select “Extend”
Or: Right-click on the Desktop > Display Settings
Under Multiple Displays, select “Extend these displays”
PowerPoint
Start slideshow: ⌘Cmd + Enter (Mac) or F5 (PC)
Or: Click Slide Show > Play from Start
If notes show on the wrong screen, click “Swap Displays”
PowerPoint® is a registered trademark of Microsoft Corporation. This instructional content is provided for educational purposes only and does not imply endorsement or affiliation with Microsoft.
Google Slides
Use Google Chrome as your browser
Click the dropdown next to ‘Slideshow’ > select Presentation Display Options
Check “Presenter View” and “Full Screen”
If prompted, select “Allow”
Choose the external display (may have a strange name like PanasonicXYZ)
Click Start Slideshow
Google Slides™ is a trademark of Google LLC. This instructional content is provided for educational purposes only and does not imply endorsement or affiliation with Google.
Inclusive Speaker Online Course
In collaboration with the National Center for Women in Technology (NCWIT), the Linux Foundation has created an online course to teach the viewer about inclusion, diversity, and unconscious bias. We highly recommend all of our speakers watch the course to learn tips/tools to use when speaking to encourage inclusivity in presentations and messaging.
Code of Conduct
Please read and abide by our Code of Conduct, which is strictly enforced. We ask that speakers especially review and are careful to be inclusive in the words and images used during their presentation.
