https://en.wikipedia.org/wiki/CrowdStrike
CrowdStrike Holdings, Inc. is an American cybersecurity technology company based in Austin, Texas. It provides endpoint security, threat intelligence, and cyberattack response services.[3]
The company has been involved in investigations of several high-profile cyberattacks, including the 2014 Sony Pictures hack, the 2015–16 cyberattacks on the Democratic National Committee (DNC), and the 2016 email leak involving the DNC.[4][5] In July 2024, it issued a faulty update to its security software that caused global computer outages that disrupted air travel, banking, broadcasting, and other services.
https://www.cnn.com/2024/07/24/tech/crowdstrike-outage-cost-cause/index.html
https://www.youtube.com/watch?v=wAzEJxOo1ts
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I learned a great deal from listening to this, even though I couldn't repeat the same detailed explanation to somebody else.