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Business Insider
A massive Microsoft outage is causing disruption across the world for airlines, banks, and retailers
By Aditi Bharade,Matthew Loh,Huileng Tan,Jack Sommers,Hannah Abraham,Beatrice Nolan,
5 hours ago
A mass IT outage is affecting flights, banks, and other organizations around the world.
The issue was caused by a "defect" in an update for Windows, cybersecurity firm Crowdstrike said.
Crowdstrike and Microsoft said a fix has been deployed but the problems may take time to resolve.
Major airlines, banks, and supermarkets are experiencing widespread disruptions connected with a defective update issued by cybersecurity firm CrowdStrike.
American Airlines and United Airlines issued advisories to airborne flights early Friday morning. The carriers said communication was intermittent due to issues with systems that send messages to planes often from air traffic control or airline operations.
Some passengers were being issued with handwritten boarding passes at airports because of the disruption. At London's Heathrow airport, travelers were advised to check their gate numbers on Google as information screens were not working.
As commuters woke up in New York City, they were warned that train arrival information on the Subway would not be available, though services were unaffected.
"The world grinding to a halt because of a global IT meltdown shows the dark side to technology and that relying on computers doesn't always make life easier," said Dan Coatsworth, an investment analyst at AJ Bell.
CrowdStrike CEO George Kurtz said on X the company was "actively working with customers impacted by a defect found in a single content update for Windows hosts. The issue has been identified, isolated and a fix has been deployed."
In an interview with NBC News, Kurtz apologized for the outage: "We're deeply sorry for the impact that we've caused to customers, to travelers to anyone affected by this." He added it "could take some time" for systems to recover.
Microsoft acknowledged the issue in an X update : "Our services are still seeing continuous improvements while we continue to take mitigation actions."
The UK government was due to hold an emergency meeting to discuss the outage later on Friday.
Disruption and delays
Singapore's Changi Airport said it was manually checking-in some passengers and local media reports showed long queues at check-in counters.
A spokesperson told BI: "Due to a global outage affecting IT systems of many organizations, the check-in process for some airlines at Changi Airport is being managed manually."
At London's Luton Airport, Nick Xydias said he was stuck waiting for a Wizz Air flight to Larnaca, Cyprus.
"It's my birthday, and we'd booked a romantic trip with my wife. She'd got a new dress and everything," he told Business Insider from a long line of frustrated passengers. "All the flights are grounded."
He also shared these photos:
In Australia, Melbourne Airport said it was experiencing a "global technology" issue impacting check-in procedures for some airlines. Sydney Airport also reported a global outage affecting airline operations and terminal services, although flights were still operating.
Delhi Airport in India also said it was impacted. A passenger at the Rajiv Gandhi International Airport wrote on X that he had been issued a hand-written boarding pass.
Edinburgh airport in the UK and Berlin airport in Germany also warned of delays.
Ryanair, Europe's largest airline, warned of "disruption across the network due to a Global 3rd party IT outage which is out of our control" and advised passengers to head to airports early.
Crowdstrike issues
Many of the affected Windows devices displayed an error message — colloquially called the " Blue Screen of Death " — that locks users out of their computers.
The outage is "one of the most significant of cyber issues of 2024," Omer Grossman of cybersecurity company CyberArk said in a statement to BI. "The damage to business processes at the global level is dramatic."
Correction: July 19, 2024 — An earlier version of this story gave the wrong destination airport for a passenger. Nick Xydias was trying to reach Larnaca, Cyprus, not Monaco.
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