FT: What caused the huge global IT outage?

A minor update caused widespread disruption for businesses using Windows equipment. The issue, traced to a flawed update from security vendor CrowdStrike, led to blue screen errors on many PCs and servers. This global IT outage has affected sectors from airlines to healthcare, highlighting the vulnerability of systems relying on critical software. Although a fix is in progress, the recovery process may take days, causing significant operational challenges.

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By Camilla Hodgson, Stephanie Stacey, Cristina Criddle and Madhumita Murgia

Minor update sparks havoc among businesses that use equipment running Windows

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