Eshe Nelson and Danielle Kaye
Across the world, critical businesses and services including airlines, hospitals, train networks and TV stations, were disrupted on Friday by a global tech outage affecting Microsoft users.
In many countries, flights were grounded, workers could not get access to their systems and, in some cases, customers could not make card payments in stores. While some of the problems were resolved within hours, many businesses, websites and airlines continued to struggle to recover.
What happened?
A series of outages rippled across the globe as information displays, login systems and broadcasting networks went dark.
The problem affecting the majority of services was caused by a flawed update by CrowdStrike, an American cybersecurity firm, whose systems are intended to protect users from hackers. Microsoft said on Friday that it was aware of an issue affecting machines running “CrowdStrike Falcon.”
But Microsoft had also said there was an earlier outage affecting U.S. users of Azure, its cloud service system. Some users may have been affected by both. Even as CrowdStrike sent out a fix, some systems were still affected by midday in the United States as businesses needed to make manual updates to their systems to resolve the issue.
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