Microsoft Restores Outlook After Global Outage, Businesses Face Up to $500M in Losses

Microsoft has fully restored Outlook, Teams, and other services after a global outage lasting over 24 hours, with estimated insured losses between $300 and $500 million for affected businesses. The company attributed the incident to server issues, ruling out malicious activity or AI involvement. The outage, which began Thursday at 17:25 GMT, affected Exchange Online features and disrupted essential tasks like email, calendars, and virtual meetings. It impacted government agencies from Australia to the US, delayed financial results, and forced airlines to warn customers of communication delays, with Downdetector recording over 7.4 million reports worldwide. This marks Microsoft's second major outage this year, following incidents in January and October, raising concerns about global reliance on a single tech provider. While some organizations used fax machines and paper records as backups, analysts note high migration costs may prevent clients from switching to competitors despite reliability worries.