* [[https://media.ccc.de/v/35c3chaoswest-32-toll-of-personal-privacy-in-2018|Toll of personal privacy in 2018]]

  * https://dkg.fifthhorseman.net/blog/community-impact-openpgp-cert-flooding.html

  * https://dkg.fifthhorseman.net/blog/openpgp-certificate-flooding.html