Microsoft restores services after global outage disrupts workplaces

Microsoft said on Saturday, November 14, that it had fully restored services following a global outage that disrupted online communications for businesses and governments for more than 24 hours. Teams, Outlook and other products were affected, with the company saying its recovery work had reached the remaining customers and regions still experiencing problems.

The company attributed the disruption to server issues, said it knew of no malicious activity and ruled out artificial intelligence as the cause. Its Copilot AI assistant was among the affected products. Microsoft said the problems involved features connected to Exchange Online, its cloud email and scheduling service, while applications without those connections continued operating.

Outlook and Teams serve hundreds of millions of users, and the disruption blocked routine workplace tasks, including emailing, calendar management and virtual meetings. Public statements described effects on government agencies in Australia, Japan and the United States. Trading firms experienced delays, some companies struggled to publish earnings, and airlines cautioned customers about slower communications. Organizations running Microsoft services on their own servers were less affected.

Reports of problems began increasing on Thursday, and the incident became one of the longest outages in Microsoft's history. Downdetector recorded more than 7.4 million reports globally. At their peak, reports approached 20,000 per minute, exceeding normal levels by more than 1,500 times. Its parent company, Ookla, said reports surged as workers in Asia and Europe started their days.

The disruption renewed questions about worldwide dependence on a small group of technology companies for essential software and the cloud infrastructure supporting it. Luke Kehoe, Ookla's lead industry analyst, said the incident demonstrated the extent to which daily work depends on a single provider's email and collaboration services.

Insurance claims could follow the operational disruptions and financial losses, although Mario De Cicco, vice-president of European financial institutions at Morningstar DBRS, expects insurers' overall exposure to be limited. He estimated worldwide insured losses of $300 million to $500 million, below the $400 million to $1.5 billion financial toll associated with the 2024 CrowdStrike outage, which crashed more than eight million Windows-based computers.

Microsoft also experienced disruptions to its 365 services in January this year and October last year. An Azure cloud platform outage last month affected its productivity software and industries worldwide. Josh Gilbert, a market analyst at eToro, said recurring reliability problems could lead IT departments to reconsider concentrating more operations with one provider.

Some analysts nevertheless question whether outages will drive customers toward competitors, given the high costs of replacing software deeply integrated into everyday operations. Microsoft shares finished Friday unchanged at $523.88, with the stock up roughly eight per cent this year.