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Windows PCs crashing worldwide due to CrowdStrike issue
(mashable.com)
This is a most excellent place for technology news and articles.
I don't know exactly how crowd strike works, but this sounded like a "virus signatures" update (IE not a software update per se). And thats what caused the issue.
I think "real time virus protection" is why people use it so they expect the signatures to get updated asap/with little to no human intervention.
This is a crowd strike epic fail...for how they let their software blue screen systems with a virus signature update.