Dear colleagues, It might still seem far away, but RIPE 91 in Bucharest is approaching. Our Security Working Group session is currently scheduled for Tuesday, 21 October 2025 at 16:00. From RIPE 91 onwards, all plenary and working group proposals can be submitted through the same system, Pretalx. Please submit your proposals by 15 September 2025 via: https://pretalx.ripe.net/ripe91/cfp When submitting, please keep in mind: - Talk type: This field is not relevant for our WG – you may simply choose “Talk”. - Track: Please select "Security WG". - Duration: Indicate the total time you will need, including Q&A. More information on how to submit a talk can be found here: https://ripe91.ripe.net/present/how-to-submit-a-talk/ If you have questions about potential topics or the session in general, feel free to reach us at security-wg-chairs@ripe.net. As usual, both in-person and remote participation in the working group will be possible. We look forward to your submissions. Best regards, Brian, Tobias, Markus