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How One Bad CrowdStrike Update Crashed the World’s Computers
A defective CrowdStrike kernel driver sent computers around the globe into a reboot death spiral, taking down air travel, hospitals, banks, and more with it. Here’s how that’s possible.
By Friday morning, the situation turned into a perfect storm when the security firm CrowdStrike released a flawed software update that sent Windows computers into a catastrophic reboot spiral. Numerous security practitioners told WIRED that they anticipated or even worked with clients to attempt to protect against a scenario where defense software itself caused cascading failures as a result of malicious exploitation or human error, as is the case with Cloudstrike. “This is an incredibly powerful illustration of our global digital vulnerabilities and the fragility of core internet infrastructure,” says Ciaran Martin, a professor at the University of Oxford and the former head of the UK’s National Cyber Security Centre.
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