Global Microsoft Outage Halts Services Across More Than 70 Countries

Microsoft is struggling to restore access to its flagship software half a day after an outage began, leaving users unable to access email and chat services in one of the tech giant's most severe disruptions in recent memory. Users across the world reported problems with Outlook, Teams, and the Copilot artificial intelligence tool, after the services became unavailable for many users.

Outage Impacts

The outage drew about 200,000 reports of user issues on Downdetector, ranking among the company's most significant disruptions. Microsoft comms director Ben Hope stated that the company was investigating issues primarily affecting Exchange Online. The disruption affected users in more than 70 countries, including traders in Singapore, Indian brokerages, and officials in Tokyo.

Official Response

An investigation found that a core process on affected servers was becoming overwhelmed, causing servers to stop responding and leading to capacity loss. Microsoft stated it was trying to find the underlying cause of the traffic influx and confirmed it was not aware of any malicious activity. The company began returning a portion of affected servers to service and shifted traffic to alternative pathways.

Global Disruptions

In the US, truck manufacturer Workhorse Group postponed its earnings release due to the outage. Japan's finance ministry was unable to receive emails for most of the day, forcing ministries to pin up paper notices for journalists. Staffers at the Reserve Bank of Australia were impacted, and New Zealand immigration officials paused visa application processing. Apparel conglomerate PVH Corp. had to delay difficult internal conversations about cutting about 4 percent of its global workforce.

Context

Cloud-based software outages can halt daily operations for thousands of organizations worldwide that rely entirely on digital infrastructure for communication. Microsoft 365 bundles essential workplace tools, making widespread technical failures disruptive to government agencies, financial institutions, and corporate offices alike.