https://www.reuters.com/technology/us-sec-official-says-agency-has-begun-probe-cyber-breach-by-solarwinds-2021-06-21/

https://www.databreachtoday.com/cisa-firewall-rules-could-have-blunted-solarwinds-malware-a-16919

https://www.wired.com/story/the-full-story-of-the-stunning-rsa-hack-can-finally-be-told/

https://www.bleepingcomputer.com/news/security/microsoft-admits-to-signing-rootkit-malware-in-supply-chain-fiasco/