WELLINGTON, New Zealand — 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. News outlets in Australia — where telecommunications were severely affected — were pushed off air for hours. Hospitals and doctor’s offices had problems with their appointment systems, while banks in South Africa and New Zealand reported outages to their payment system or websites and apps.

Some athletes and spectators descending on Paris ahead of the Olympics were delayed, but Games organizers said disruptions were limited and didn’t affect ticketing or the torch relay.

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.

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 Friday morning, major delays reported at airports grew, 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.

With athletes and spectators arriving from around the world for the Paris Olympics, the city’s airport authority said its computer systems were not affected by the outage, but that disruptions to airline operations was causing delays at two major Paris airports. The Paris Olympics organizers said the outage affected their computer systems and the arrival of some delegations and their uniforms and accreditations had been delayed.

But the impact was limited, the organizers said, and the outages had not affected ticketing or the torch relay.

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.

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.
…

…

Nairobi, Kenya — Experts say Africa needs to invest in robust infrastructure if the continent is to have reliable internet after recent outages due to underwater cable failures highlighted the continent’s reliance on single-path connectivity.

Disruptions in March and May caused online banking problems and communication delays. Businesses experienced interruptions in many countries.

In March, on the Atlantic coast of West Africa, four submarine cables that deliver the internet to at least 17 countries went offline.

Less than two months later, Eastern and Southern Africa experienced outages after two undersea cables were damaged. In Tanzania, the U.S. Embassy in Dar es Salaam closed for two days due to the disruption.

Ben Gumo, a Kenyan who relies on the internet to sell clothes, shoes and children’s wares, said he lost business during the May disruption.

“Someone … puts stuff in the [online] basket, but because of the outage he cannot complete the sale, so he cancels,” Gumo said, adding that he couldn’t update his website with new products.

According to the telecommunications research company Telegeography, over 100 cable cuts occur globally each year. Experts blame undersea volcanic activity, rock falls, recent rainfall and currents in rivers that are much stronger than when some of the cables were built.

Manmade activities also cause disruptions. According to one report, a ship was attacked in the Red Sea and drifted, its anchor pulling up three underwater cables.

Mike Last works with the West Indian Ocean Cable Company, which operates in 20 African countries and has built 36 data centers. He said recent disruptions prompted government officials and businesspeople to recognize the need for better internet infrastructure.

“What it made people realize is that you have to invest in a reliable network, you have to invest in redundancy,” Last said, meaning that internet service is provided by more than one source. “We’ve seen a real boom in clients coming to us wanting connectivity on the new subsea systems.”

Some countries can stay online when one internet source is cut off, although service is often slow and not stable, because service providers and telecommunication carriers invested in more than one international connection.

According to the World Bank, sub-Saharan Africa’s digital infrastructure coverage, access and quality are far behind those of other regions.

However, Africa is embracing the digital future. According to the Submarine Cable Networks, 37 countries have at least one subsea cable connection, and 20 countries have more than two subsea cables.

Last said cables planned by Google and Meta will improve connectivity.

One of the new cables, he said, has a high capacity. Another new cable — named 2Africa and led by Meta, the parent company of Facebook — is being built all the way around Africa.

“It brings a lot of capacity to Africa, and that will help,” Last said.

Experts warn that disparities in connectivity across Africa are expected, but that the development of infrastructure, government policies and private sector investments can accelerate growth.
…