Executive Summary We will be closed Thursday, 24 December and Friday 25 December to celebrate Christmas with family and friends. We will be closed on Friday, 1 January 2020 for New Years Day.Probably the biggest news for December (so far, 2020 isn't over yet) is what looks to have been a very successful compromise of SolarWinds with impacts reaching both far and wide including the Department of Energy, National Nuclear Security Administration, Treasury and a who's who of other critical infrastructure and large enterprise. There's additional information from FireEye here and Krebs here but, short term, removing anything related to SolarWinds immediately would likely be a good plan. Microsoft patched 58 vulnerabilities this month with only nine listed (by both Microsoft and SANS) as critical and none currently being actively…