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A global technology outage grounded flights, knocked banks and hospital systems offline and media outlets off air on Friday in a massive disruption that affected companies and services around the world and highlighted dependence on software from a handful of providers.
Cybersecurity firm CrowdStrike said that the issue believed to be behind the outage was not a security incident or cyberattack—and that a fix was on the way. The company said the problem occurred when it deployed a faulty update to computers running Microsoft Windows.
But hours after the problem was first detected, the disarray continued—and escalated.
Long lines formed at airports in the U.S., Europe and Asia as airlines lost access to check-in and booking services at a time when many travelers are heading away on summer vacations.
Indiana impact
Indianapolis International Airport posted on Friday morning on X that the outage has affected some airlines.
“A worldwide technical issue impacting IT systems at U.S. airlines has caused some airlines to have a ground stop,” the post reads. “Travelers planning to depart from IND today should please check with their airline for updates on flight status before coming to the terminal.”
Indianapolis-based electric utility AES Indiana also reported that its payment vendor is being affected by the outage, causing customers to be unable to pay bills.
The Indiana Bureau of Motor Vehicles posted an update on Facebook saying it is unable to process transactions.
A disturbing reminder of vulnerability
“This is a very, very uncomfortable illustration of the fragility of the world’s core internet infrastructure,” said Ciaran Martin, a professor at Oxford University’s Blavatnik School of Government and former Head of Britain’s National Cyber Security Centre.
DownDectector, which tracks user-reported disruptions to internet services, recorded that airlines, payment platforms and online shopping websites across the world were affected—although the disruption appeared piecemeal and was apparently related to whether the companies used Microsoft cloud-based services.
Cyber expert James Bore said real harm would be caused by the outage because systems we’ve come to rely on at critical times are not going to be available. Hospitals, for example, will struggle to sort out appointments and those who need care may not get it.
“There are going to be deaths because of this. It’s inevitable,’’ Bore said. “We’ve got so many systems tied up with this.”
Microsoft 365 posted on social media platform X that the company was “working on rerouting the impacted traffic to alternate systems to alleviate impact” and that they were “observing a positive trend in service availability.”
The company did not respond to a request for comment.
CrowdStrike said in an emailed statement that the company “is actively working with customers impacted by a defect found in a single content update for Windows hosts.”
It said: “This is not a security incident or cyberattack. The issue has been identified, isolated and a fix has been deployed.”
The Austin, Texas-based company’s Nasdaq-traded shares were down nearly 15% in premarket trading early Friday.
A recording playing on its customer service line said, “CrowdStrike is aware of the reports of crashes on Microsoft ports related to the Falcon sensor,” referring to one of its products used to block online attacks.
Broadcasters go dark, surgeries delayed, ‘blue screens of death’
Meanwhile, governments, officials and companies across the world scrambled to respond.
New Zealand’s acting prime minister, David Seymour, said on X that officials in the country were “moving at pace to understand the potential impacts,” adding that he had no information indicating it was a cybersecurity threat.
The issue was causing “inconvenience” for the public and businesses, he added.
On the Milan stock exchange, the FTSE MIB index of blue-chip Italian stocks could not be compiled for an hour, though trading continued.
Major delays reported at airports grew on Friday morning, with most attributing the problems in booking systems of individual airlines.
In the U.S., the FAA said the airlines United, American, Delta and Allegiant had all been grounded.
Airlines and railways in the U.K. were also affected, with longer than usual waiting times.
In Germany, Berlin-Brandenburg Airport halted flights for several hours due to difficulties in checking in passengers, while landings at Zurich airport were suspended and flights in Hungary, Italy and Turkey disrupted.
The Dutch carrier KLM said it had been “forced to suspend most” of its operations.
Amsterdam’s Schiphol Airport warned that the outage was having a “major impact on flights” to and from the busy European hub. The chaotic morning coincided with one of the busiest days of the year for Schiphol.
Widespread problems were reported at Australian airports, where lines grew and some passengers were stranded as online check-in services and self-service booths were disabled — although flights were still operating.
In India, Hong Kong and Thailand, many airlines were forced to manually check in passengers. An airline in Kenya was also reporting disruption.
Australia bears brunt of outages in Asia
While the outages were being experienced worldwide, Australia appeared to be severely affected by the issue. Disruption reported on the site DownDetector included the banks NAB, Commonwealth and Bendigo, and the airlines Virgin Australia and Qantas, as well as internet and phone providers such as Telstra.
National news outlets—including public broadcaster ABC and Sky News Australia—were unable to broadcast on their TV and radio channels for hours. Some news anchors went on air online from dark offices, in front of computers showing “blue screens of death.”
Hospitals in several countries also reported problems.
Britain’s National Health Service said the outage caused problems at most doctors’ offices across England. NHS England said in a statement said the glitch was affecting the appointment and patient record system used across the public health system.
Some hospitals in northern Germany canceled all elective surgery scheduled for Friday, but emergency care was unaffected.
Israel said its hospitals and post office operations were disrupted.
In South Africa, at least one major bank said it was experiencing nationwide service disruptions as customers reported they were unable to make payments using their bank cards in stores. The New Zealand banks ASB and Kiwibank said their services were down as well.
Shipping was disrupted too: A major container hub in the Baltic port of Gdansk, Poland, the Baltic Hub, said it was battling problems resulting from the global system outage.
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So is anyone going to hold Microsoft accountable for releasing bad software that clearly wasn’t properly tested?
I believe it was the cybersecurity firm CrowdStrike that was at fault–releasing a security patch that was faulty..
oh, yeah that finally came out. How is Crowdstrike going to be held responsible for companies worldwide having to bring in extra manhours in their IT depts to fix their mistake? How are they going to repay the countless airline customers? Yet another time they get an “oops” and everybody else pays with inconvenience?