Computer systems at businesses and public services around the globe were disrupted after a botched update of a widely used cybersecurity program took down Microsoft Corp. systems.

CrowdStrike Holdings Inc. Chief Executive Officer George Kurtz posted on X on Friday that the fault had been identified and “a fix has been deployed,” adding that it wasn’t a cyberattack. Compounding the issue, Microsoft also reported an apparently unrelated problem with its Azure cloud service.