A major Microsoft outage has disrupted workplaces across the world for more than 20 hours, affecting key services including Outlook, Teams, Word, Excel, PowerPoint, OneDrive and SharePoint. The disruption, which appears to be linked to an update-related issue, has impacted businesses, government departments, schools and airlines. Microsoft has ruled out indications of a cyberattack but warned that recovery could take time after some servers became unresponsive again as traffic was restored.