Speaker Guide

Thank you for speaking at European Open Source Security Forum 2025, in Brussels, Belgium, on Thursday, 30 October.

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 additional speaker information, such as on-site details, as they are available.

Please click through the tabs on this page to access information.

• Speaker Registration Deadline: Friday, 3 October
  You should have received registration information in your speaker notification email. Please email cfp@linuxfoundation.org if you need this information sent to you again.
• Additional AV Request Deadline: Tuesday, 10 October
• Speaker PowerPoint Presentation Deadline: Wednesday, 22 October
• Event Date: Thursday, 30 October

• To confirm your participation and secure your speaking slot, it’s important to complete your registration by Friday, 3 October, using the details you received in your notification email. If you require this information again, please reach out cfp@linuxfoundation.org. Be sure to submit any accommodation needs when registering. Failure to register by the deadline may result in your slot being given to someone on our waitlist.
• If you have already registered for the event and are now a speaker listed on the schedule, please reach out to our registration team.
• Please review our Health & Safety page. Remember to check for updates as the event approaches.

• 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 requesting a visa letter at your earliest convenience and contacting your local Embassy/Consulate with any visa questions you may have.
  • The Linux Foundation processes most visa letter requests in (3) business days.

Venue

European Open Source Security Forum 2025 will take place at the Centre for European Policy Studies, Pl. du Congrès 1, 1000 Bruxelles, Belgium

Getting There

Please view details on our Venue & Travel page.

The schedule will be announced on Thursday, 25 September, and will be posted on our website using 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.

Please note the following technical requirements:

• All speakers must supply their own computers and HDMI adapters to use during their talk.
• Presentation slides should be formatted in 16:9. 
• Ensure you are presenting in Light Mode. Presentations in Dark Mode may darken and remove blue light to create a warmer, yellowish or orange tone that may not be desired.
• The room will include a screen, projector, and microphones for speaker or panelist.
• Conference Wi-Fi will be available in all breakout rooms. 
• It is recommended to add a download link to your session description if attendees need any materials in advance. To help keep the network running smoothly, we also suggest avoiding online voting or activities that require everyone to be online at the same time.
• If you require any additional AV, please email Stacey Orlick by Tuesday, 10 October. 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.

Presentation Details

All speakers are required to submit a PDF-format version of their final presentation slides ahead of the event to Sched.com. We find that adding the presentations before the event helps to drive interest in attending the session. As a reminder, you will be driving the presentation from your laptop via PowerPoint and this PDF version is only for attendees to review. The deadline for presentations is Wednesday, 22 October.

To upload slides:

• Log in to your speaker profile through Sched.com or via the mobile site
• On the top of the page click “Manage and Promote Your Session”
• Click “Add Presentation”
• Click in the “Select a File” box and add the PDF document (note: there is a 50MB size limit)
• Click “Upload” and your slides will automatically be saved

Branded Powerpoint

We have an optional PowerPoint template for our speakers. Use of this template is not required but we do welcome you to use it for your convenience.

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.

Use “Extended Display” mode (not Mirrored)

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. 

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.

Do you have a speaker or schedule-related question? Please contact cfp@linuxfoundation.org.