One of the most pernicious aspects of the far-reaching and potentially devastating SolarWinds supply chain hack is that it successfully evaded detection for at least ten months by hiding inside seemingly normal software operations. The hack of SolarWinds’ Orion product enabled Russian actors to embed surveillance malware into widely used management software. It pushed the so-called SUNBURST malware deep into public and private networks using the invisibility cloak of ordinary activity, causing no harm or disruption as it silently operated.