Tech outage latest | Airlines and others rush to get back on track after global tech disruption

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Transport providers, businesses and governments are rushing to get all their systems back online after long disruptions following a widespread technology outage

Transport providers, businesses and governments on Saturday are rushing to get all their systems back online after long disruptions following a widespread technology outage.

The biggest continuing effect has been on air travel. Carriers canceled thousands of flights on Friday and now have many of their planes and crews in the wrong place, while airports facing continued problems with checking in and security.

At the heart of the massive disruption is CrowdStrike, a cybersecurity firm that provides software to scores of companies worldwide. The company says the problem occurred when it deployed a faulty update to computers running Microsoft Windows, noting that the issue behind the outage was not a security incident or cyberattack.

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Microsoft says 8.5 million devices running its Windows operating system were affected by a faulty cybersecurity update Friday that led to worldwide disruptions.

A Saturday blog post from Microsoft was the first estimate of the scope of the disruptions caused by cybersecurity firm CrowdStrike’s software update.

“We currently estimate that CrowdStrike’s update affected 8.5 million Windows devices, or less than one percent of all Windows machines,” said the blog post from Microsoft cybersecurity executive David Weston.

“While the percentage was small, the broad economic and societal impacts reflect the use of CrowdStrike by enterprises that run many critical services.”

Weston said such a significant disturbance is rare but “demonstrates the interconnected nature of our broad ecosystem.” Windows is the dominant