Peter Eckersley, one of the original founders of the Let's Encrypt non-profit TLS certificate authority, has died suddenly, as reported by Seth Schoen:
Peter was the leader of EFF's contributions to Let's Encrypt and ACME over the course of several years during which these technologies turned from a wild idea into an important part of Internet infrastructure. He also took a lot of initiative in coalescing the EFF, Mozilla, and University of Michigan teams into a single team and a single project. He later served on the initial board of directors of the Internet Security Research Group.