Kim Zetter on Twitter: "DOJ detected SolarWinds hack i own network in summer of 2020 - 6 months before it was publicly exposed by Mandiant - but didn't know significance of what it found. Microsoft/Mandiant/SolarWinds all helped inv, but none could solve the mystery at the time https://t.co/JCiuQsFSS1" / Twitter

https://twitter.com/kimzetter/status/1652021967258566665