• Welcome to DC4131

  • Switzerland's DEFCON Chapter

  • Established 2009

Scroll down for more information.


Who we are and what we do

DC4131 is a local DEFCON Group and is organized as an association according to Swiss law. We are well-known for the Area41 conference (formerly hashdays) and regular member-events such as our Beer on Tuesday. DC4131 strives to support and foster the local hacker community. In 2023 Rhacklette joined DC4131 as a subgroup and organizes events and gatherings for female, inter, non-binary, trans and agender (FINTA) people in Security.

If you ask yourself, what DC4131 means: DC stands for DefCon, 41 is the area code for Switzerland and 31 is the area code for Berne, the capital of Switzerland.

Our statutes can be found here (German - but you know how to translate those to your preferred language right?)



Get in touch!

Have questions or other feedback? Want to become a member?

Meet Us
DEFCON Switzerland, 8808 Pfäffikon SZ, Switzerland


If you want to become a member, the here are the terms:

  • The annual membership fee is currently 50 CHF
  • Our statutes: German / English

Please send an email to:

You should get an answer within 24 hours. If not, our email might have been landed in your spam filter, which you might want to check.

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