Zulip

Once the competition kicks off, the vast majority of communication will happen on an eCTF Zulip server. Zulip is a space to talk to your fellow competitors, MITRE organizers, and competition sponsors.

Channel Structure

The following channels will be available for use by teams:

• #General: General eCTF discussion

• #Announcements: Read-only feed of competition announcements

• #Tech Support: Place to ask for help with technical problems

• 2026-TEAMID: A private channel only accessible by your team and the eCTF organizers. The organizers or your advisor will add you to this channel.

• #2026-attack: Channel for teams in the Attack Phase. Teams will be added to this channel once they pass Handoff.

• #2026-attack-packages: Read-only feed of available Handoff Packages in the Attack Phase. Teams will be added to this channel once they pass Handoff.

Zulip Tips

• Unless your question is sensitive to the details of your design, use #Tech Support as much as possible, as other competitors may know the answers to your questions and your question may help others who are struggling with the same problem

• Use @organizers on new messages where you want to get the attention of the MITRE organizers. This is almost always better than tagging individual organizers, as other organizers may be able to assist you. The organizers can help with rules clarifications and technical