A significant global tech outage disrupted operations across multiple industries on Friday, impacting airlines, broadcasters, and services from banking to healthcare. According to CrowdStrike, a prominent cybersecurity firm, an issue with its Falcon Sensor software caused Microsoft Windows systems to crash and display the “blue screen of death.” This problem affected Windows machines and servers, leading to a recovery loop that prevented them from restarting.
CrowdStrike CEO George Kurtz clarified that the issue was related to a recent update and was not a security incident or cyberattack. The update has since been rolled back, and a fix deployed. However, the outage caused widespread disruptions, including problems with Microsoft 365 apps and services.
Airline operations were particularly affected, with major U.S. airlines like United, American, Delta, and Allegiant grounded. At Los Angeles International Airport, some travelers slept on the floor due to flight delays. Toronto’s Pearson Airport experienced varied impacts across different airlines, with Porter Airlines canceling all flights until at least noon ET and waiving change fees for affected passengers. Montreal-Trudeau International Airport also faced delays, especially with U.S. customs processing, which has since resumed.
In Europe, Edinburgh, Stansted, and several other airports reported longer wait times and manual check-in processes. Airports in India, Hong Kong, Tokyo, Amsterdam, Berlin, and Spain also faced disruptions. Zurich Airport suspended landings for a time but continued to accept flights already in the air, relying on manual check-in processes in some cases.
News broadcasters, including Sky News in the UK and various outlets in Australia, were knocked offline. The CBC experienced issues with its automated broadcasting processes, affecting control room operations and graphics.
Australia saw significant disruptions, with outages affecting banks such as NAB, Commonwealth, and Bendigo, as well as airlines like Virgin Australia and Qantas. Telecommunications providers including Telstra also reported issues. The UK’s National Health Service (NHS) faced disruptions in its appointment and patient record systems but reported no impact on emergency services.
CrowdStrike, which serves over half of the Fortune 500 companies, saw its shares drop more than 10% in pre-market trading following the incident. The company emphasized that it is working closely with affected customers to resolve the issue.
This outage underscores the vulnerability of global operations to tech disruptions, highlighting the critical need for robust cybersecurity measures and quick response strategies. As companies continue to recover, the focus will be on preventing such widespread impacts in the future.
