By Helen Regan, Jessie Yeung, Kathleen Magramo, Olesya Dmitracova, Christian Edwards and Sana Noor Haq, CNN
Updated 7:36 AM EDT, Fri July 19, 2024
What you need to know
Global outages: Tech disruptions worldwide have hit airlines, banks and businesses, which are scrambling to respond.
What’s behind this? The outages appear to stem at least partly from a software update for Microsoft Windows operating systems issued by cybersecurity firm CrowdStrike, experts tell CNN.
Fix deployed, but impacts remain: CrowdStrike’s CEO said that a fix has been deployed. And Microsoft said the “underlying cause” has been fixed, but that the outages are still affecting some services.
Travel stalled: Major US carriers including Delta, United and American Airlines have had flights grounded by authorities. Airlines in Europe and Asia-Pacific region have also seen disruptions.
Critical infrastructure hit: Banks in Australia, New Zealand, South Africa and Britain have been affected, while Israel’s hospitals are facing a computer “malfunction,” and the UK’s National Health Service said most GP practices in England had been affected.
Microsoft says the underlying cause for the global outage has been fixed but impacts continue
From CNN’s Maisie Linford
Microsoft said the “underlying cause” that caused the global outage “has been fixed,” adding that residual impact is still affecting some services.
“The underlying cause has been fixed, however, residual impact is continuing to affect some Microsoft 365 apps and services,” Microsoft said in a post on X Friday.
“We’re conducting additional mitigations to provide relief,” the post added.
More on what’s behind this: The outage appears to stem at least partly from a software update issued by firm CrowdStrike, experts tell CNN. The CEO of CrowdStrike said that the IT issue causing a global outage has been identified and that a fix has been deployed.