FAQ

What is the format of European Open Source Security Forum 2025 and when will it take place?

European Open Source Security Forum 2025 is primarily an in-person event that will take place on 30 October 2025 in Brussels, Belgium.

What time zone will the event be in?

European Open Source Security Forum 2025 will be held in CEST.

What is the recommended attire?

There is no set dress code and, like many open source events, attendees will dress in a range, from jeans to suits. Our recommendation is business casual; jeans are acceptable. Please wear layers; conference rooms tend to get cold.

Will you have vegan / gluten-free / dairy-free / Kosher / Halal, etc. meals available onsite?

We account for a portion of attendees that need vegetarian, vegan, and gluten-free meals – these are typically readily available at all snack breaks, lunches, and receptions. No special order is required and you can indicate your preference/need during registration. 

For those that need a special order meal such as Kosher or Halal, we do ask that you contact us so that we may place these orders in advance of the event. Most catering companies are unable to prepare/order these types of meals on the day they are needed as they are made in offsite kitchens. Note that we are also a peanut-free event. If you have another severe food allergy, please contact us. We will make every reasonable effort to accommodate your need(s).

What is the policy on animals at the event?

Service animals are permitted.

I have a question that isn’t answered here. 

Have a question that hasn’t been answered on the website? Contact us for assistance! Find answers to commonly asked questions or submit a ticket. You will be prompted to sign in or create a Linux Foundation account so our help desk can support you better.

How do I access a speaker’s slides after the conference?

Any session slides provided by speakers will be added to the event schedule as they are received. While we encourage all speakers to share their slides, there may be instances where slides are not made available.

In what language should I submit a CFP?

Please submit in English.

What onsite resources are available?

We have a number of onsite resources to support our attendees. For full details, visit our  Inclusion & Accessibility page.

What do I do in case of an emergency?

In an emergency, always dial 112. Find additional information about emergency resources at the event.

How can I register for the event?

Information on registering can be found on our Register page.

What is the cost of the event?

Information on registration fees can be found on our Register page.

Can I register onsite?

Yes – if you did not have a chance to register online before the event, and there is still event capacity, you may register on-site. Please note that the registration process on-site may take 10-15 minutes. We will only be able to accept credit card payments.

Where do I get my speaker access code?

Speakers will receive a registration link and code in their acceptance email once speaker notifications have been sent. If you did not receive these instructions, please email cfp@linuxfoundation.org for more details.

Who can I contact about questions or problems regarding my registration?

Please submit a ticket using Event Support. 

What are the cancellation, refund, and substitution policies?

Our registration policies can be found on our Register page.

I need a visa letter to attend this event. How do I request one?

For information about visa invitation letters, or to request one, visit the Visa Letter Request page.

Is registration for Linux Foundation Events GDPR compliant?

Yes. If you would like to request that your data be removed from the Linux Foundation event registration system, please email gdpr@linuxfoundation.org. If you have questions about GDPR, you can reach us at privacy@linuxfoundation.org.

How do I get to the conference?

For information about travel to the event, visit the Venue & Travel page.

Is a hotel reservation included in my registration?

No. Visit the Venue & Travel page for more information about how to make a hotel reservation.

Is parking available at the venue? 

Visit the Venue & Travel page for more details on parking.