title: The Office date: 2009-03-03 19:14:00 updated: 2019-08-14 17:42:33 author: erdgeist tags: office, club, bureaucracy, contact, membership, buero, chaos, member, mitglieder Like every large organisation the Chaos Computer Club doesn’t get by some bureaucracy. The [office](mailto:office@ccc.de "Chaos Computer Club Office") manages all your matters regarding your membership or Datenschleuder subscription. From the office, to identify you easily, you’ll get a small (at the time 5 digit) number assigned. We call this number Chaosnummer (chaos number). Once you became a member the office will make sure that your name appears on your designated Datenschleuder and the cash desks at the [Congresses](http://events.ccc.de/congress/ "Chaos Communication Congress") and [Camps](http://events.ccc.de/camp/ "Chaos Communication Camp") know to give you a discount. If you let the payments slide for too long the office might send you friendly payment reminders as well. You can get in touch with the office via e-mail at , and we recommend – as for any e-mail communication – to encrypt your e-mails to us using [PGP](http://en.wikipedia.org/wiki/Pretty_Good_Privacy "PGP") ([our key](/system/uploads/280/original/Office-2019.asc "office PGP key for 2019")). The current key’s fingerprint is: pub rsa4096 2019-03-08 [SC] [expires: 2020-03-31] CAEE E257 594B A8C0 E1DD 87EE 84A4 FA72 009E D7A1 uid [ultimate] CCC Office Key (CCC Mitgliederverwaltung, Key 2019) sub rsa4096 2019-03-08 [E] [expires: 2020-03-31] The office is also available via snail mail at Chaos Computer Club e. V. Mitgliederverwaltung\ Zeiseweg 9\ D-22765 Hamburg GERMANY Before you contact the office please check quickly in our [membership section](/en/membership "Chaos Computer Club membership") or in our [FAQ](/en/faq "Chaos Computer Club FAQ"). Maybe your question is answered there already.