Email

You are welcome to write to me personally if you don’t just want to market your service.

Email
PGP Public Key 1
Download
Fingerprint
2272 F886 7929 DAC9 2526
34CE E7FE 0612 2BC7 45DC

Messenger

You can reach me via the following messengers 2.

Signal
If you have my mobile number
Threema
Matrix
Telegram

Social Media

I try to get rid of most of my social media accounts 3, but once in a while I toot on

Mastodon 4
  @nrbrt@mastodon.social

  1. If you want to write encrypted emails but don’t know what to do with terms like PGP and Fingerprint, then try the Email Self-Defense Guide from the Free Software Foundation (FSF)↩︎

  2. A good orientation for choosing messengers is the regularly updated Messenger-Matrix from Mike Kuketz. Signal and Threema are recommended for everyone and the Matrix protocol could be the future of messaging (read more about it here [German]). Telegram is not recommended and per default unencrypted, but its client is open source and offers more comfort than SMS. ↩︎

  3. The film The Social Dilemma shows very clearly what the consequences of our growing dependence on social media are. ↩︎

  4. Mastodon is a microblogging platform similar to Twitter, but decentralized and part of a greater network of platforms, the Fediverse. A good introduction can be found here [German] on the Kuketz-Blog↩︎