Numerous members of SBA are at the CCC Congress in Hamburg. 33C3 takes place from December 27 – 30, 2017 in Hamburg, Germany and is the biggest non-commercial hacker conference worldwide with more than 11.000 people attending ever year. You can find the full schedule here.
Martin Schmiedecker gives a talk on “Everything you always wanted to know about Certificate Transparency (but were afraid to ask)”. The recordings are already available on media.ccc.de and on Youtube.