This is the best summary I could come up with:

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CrowdStrike’s faulty update caused a worldwide tech disaster that affected 8.5 million Windows devices on Friday, according to Microsoft.

Microsoft says that’s “less than one percent of all Windows machines,” but it was enough to create problems for retailers, banks, airlines, and many other industries, as well as everyone who relies on them.

Separately, the technical breakdown from CrowdStrike released Friday explains more about what happened and why so many systems were affected all at once.

CrowdStrike’s breakdown explains the configuration file that was at the heart of the issue:

CrowdStrike explained that the file is not a kernel driver but is responsible for “how Falcon evaluates named pipe1 execution on Windows systems.” Security researcher and Objective See founder Patrick Wardle says that the explanation aligns with the earlier analysis he and others provided about the cause of the crash, as the problem file “C-00000291- “triggered a logic error that resulted in an OS crash” (via CSAgent.sys).”

CrowdStrike’s channel file updates were pushed to computers regardless of any settings meant to prevent such automatic updates, Wardle noted.

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