A significant outage at Microsoft has left users worldwide grappling with the loss of access to essential services such as Outlook, Teams, and Copilot. The troubles began around noon on the US East Coast on Thursday and persisted into the early hours of Friday, affecting numerous businesses, educational institutions, and governmental operations across several countries.
By 3:30 a.m. GMT on Friday, the disruptions were still widespread. Microsoft acknowledged that its attempts to restore server functionality had not yielded the expected results. An announcement confirmed that systems restored to service might become unresponsive again due to ongoing traffic imbalances, which have plagued their infrastructure.
Reports indicated that the outage impacted numerous sectors, with schools, courts, and various businesses in the US and Australia experiencing significant disruptions. The situation escalated to the point where some companies opted to send employees home early on Thursday, while others turned to alternative communication methods such as Slack and phone calls.
Users in regions including the US, Japan, and Singapore reported substantial service interruptions, with outage tracking website Downdetector registering between 130,000 and 140,000 reports for Outlook alone. Given that many users do not report issues, the actual number is likely higher.
The outage primarily affected Microsoft 365 services linked to Exchange Online, which includes Outlook, SharePoint, Teams, and the AI-powered Copilot tool. While messaging and online meetings remained operational for some users, many faced difficulties accessing important files and calendar details.
Microsoft provided updates on social media and its service health status page. Early reports indicated positive results from attempts to restart affected infrastructure, but subsequent updates revealed that the applied changes were not having the desired effect. A spokesperson expressed gratitude for customer patience, stating that the issues were initially thought to be localized to the Americas but were later found to be global in scale.
In Australia, the outage created chaos for businesses unable to print invoices and for schools forced to cancel online classes. Courts experienced disruptions as live feeds went down, and schools resorted to texting parents to report absences until email systems were restored. The knock-on effects of the outage were felt widely, with reports indicating that individuals missed job interviews because they couldn’t join virtual meetings.
Moreover, AI companies like OpenAI and Anthropic, which rely on Microsoft’s infrastructure, were also impacted by the outage, highlighting the far-reaching implications of the service disruptions. OpenAI confirmed it was investigating the issue affecting its connections to Microsoft services.
In a related development, electric truck manufacturer Workhorse Group announced it would delay its third-quarter earnings report, originally scheduled for November 12, now set for November 16, due to disruptions stemming from the Microsoft outage. This incident marks another instance of Microsoft facing critical service failures, following a recent outage of its Azure cloud platform that similarly affected many productivity tools globally.
As Microsoft engineers continue to work on resolving the issue, users and businesses alike remain hopeful for a swift resolution to restore normal operations and alleviate the escalating fallout from this significant service disruption.
