DEF CON CTF 28 Call for Prequalifiers
Every year, by law and by custom, the DEF CON CTF organizers select a number of prominent events whose winners will automatically receive an invitation to the DEF CON CTF final event.

The OOO is soliciting submissions of such events to be considered for pre-qualifier status. If you run a CTF that is high quality, well-regarded, and compatible with our philosophy (, we would love to hear from you!

Nominations will be looked at shortly after submission, and the OOO will announce the selection of events on a first-selected, first-announced basis.

For a submission to be considered, all fields must be fully filled out. We only accept self-nominations, as we might contact you for more information, etc.
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