An in-depth look inside the US investigation into the SolarWinds hack, one of the most sophisticated cyberespionage campaigns of the decade (Kim Zetter/Wired)

Kim Zetter / Wired:
An in-depth look inside the US investigation into the SolarWinds hack, one of the most sophisticated cyberespionage campaigns of the decade  —  The attackers were in thousands of corporate and government networks.  They might still be there now.  Behind the scenes of the SolarWinds investigation.