A major Microsoft 365 outage is preventing users around the world from accessing essential services like Teams, Exchange Online, and the Microsoft 365 admin center.
TLDR:
- Microsoft 365 is down globally, affecting Teams, Exchange Online, and admin access.
- Multi-Factor Authentication (MFA) and single sign-on (SSO) through Microsoft Entra are also failing.
- Microsoft is working on a mitigation strategy by rebalancing service infrastructure.
- This is the latest in a series of frequent outages impacting Microsoft 365 services in 2024.
What Happened?
Microsoft confirmed that users across the globe are currently experiencing problems accessing Microsoft 365 services. The issue is primarily affecting Microsoft Teams and Exchange Online, as well as the admin center used by IT professionals. In some cases, users cannot authenticate or log in, and those relying on MFA are not receiving verification prompts.
We’re investigating reports of issues accessing Microsoft 365 services and the Microsoft 365 admin center. More details can be found in the Service Health Dashboard under MO1168102 or https://t.co/ehoQShPjzB.
— Microsoft 365 Status (@MSFT365Status) October 8, 2025
Microsoft’s Global Service Disruption
The ongoing outage, which Microsoft is tracking as a critical incident on its Service Health Dashboard, is part of a broader disruption that includes failures in Microsoft’s authentication systems.
- Users trying to sign in to Microsoft services are encountering the message: “We are sorry, something went wrong. Please try refreshing the page in a few minutes.”
- Multi-Factor Authentication (MFA) messages are not reaching users.
- Microsoft Entra SSO (single sign-on) is also impacted, blocking access across various Microsoft 365 services.
- Access to the Microsoft 365 admin center is currently limited for many business and enterprise users.
In an official update, Microsoft stated:
Some users attempting to access other Microsoft 365 services, including but not limited to Microsoft Teams and Exchange Online, may be unable to authenticate and access the services.
To keep users informed, Microsoft is actively posting updates on its Service Health Status page, especially for organizations unable to get into the admin portal.
Working on a Fix
Microsoft’s engineering team is currently rebalancing a portion of its dependent service infrastructure as a short-term fix to bring relief to affected users. However, this workaround might trigger additional complications related to directory operations, meaning the situation could fluctuate before it stabilizes.
While the company has not specified which regions are hit the hardest, reports suggest that the issue is widespread and not confined to any single geographic location.
A Year of Persistent Disruptions
Microsoft 365 users are no strangers to downtime this year. The platform has faced several major outages in 2024, impacting its core services:
- In January, an MFA issue blocked users from accessing Office apps.
- In July, administrators with business and enterprise accounts lost access to the Microsoft 365 admin center.
- A month later, users in North America were locked out of Office.com and the company’s AI assistant, Copilot.
- Microsoft Teams also suffered file-sharing outages earlier this year, hampering collaboration for remote teams.
These repeated disruptions are putting a spotlight on the reliability of Microsoft’s cloud infrastructure, which, despite strong uptime guarantees, has seen a worrying number of critical issues in recent months.
What TechKV Thinks?
Honestly, this kind of outage hits hard. Many businesses rely on Microsoft 365 to run meetings, manage emails, and handle daily work. When Teams and Exchange go down, it’s not just an inconvenience, it disrupts entire workflows. It’s especially frustrating to see recurring issues with MFA and admin access, which are supposed to provide both security and control. While Microsoft is usually quick to respond, the frequency of these outages is becoming a real concern. They need more than quick fixes, they need lasting solutions.
