Microsoft-CrowdStrike outage: how a single software update was able to cause IT chaos across the globe

By Feng Li, Chair of Information Management, Associate Dean for Research & Innovation, Bayes Business School, City, University of London

The world as we know it increasingly relies on digital connectivity that, for the most part, works quietly and invisibly in the background. So how did a single software update bring down half the internet?

The global IT outage on 19 July serves as a stark reminder of our vulnerability to technological failures. Triggered by a single faulty software update provided by the cybersecurity firm, CrowdStrike, this had a disastrous impact on airlines, media outlets, banks, and retailers worldwide, particularly businesses that…

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