Security Market Segment LS
Tuesday, 16 March 2021 08:43

Microsoft 365 services take a hit globally after authentication update Featured

Microsoft 365 services take a hit globally after authentication update Image by Tumisu from Pixabay

Microsoft is rolling back an update to its authentication system after access issues surfaced affecting thousands of users worldwide.

In a tweet, the Redmond-based software giant said: "We're investigating an issue for access to multiple M365 services. Please visit the admin centre post M0244568 for more information. We'll provide additional information here as it becomes available.

"We've confirmed that this issue could be affecting users worldwide. Additional information can be found at, or if available, under MO244568 in the admin centre."

The company's Azure Support Twitter account said there were issues with Azure Active Directory.

One Twitter user, Erik J. Hoeksma, wrote: "It is not just the portal, it's also Azure AD App Registrations (and Service Principals) that are unable to refresh tokens or get new ones. This means that any applications connected to the AD for authentication or authorisation is now broken."

Architect and developer Jon Baggaley asked: "What on earth constitutes a critical status? Nuclear meltdown, alien invasion? All your services are down in one hit!"

Microsoft had more detail on the issue at its 365 health status page. "Users may be unable to access multiple Microsoft services," the company wrote.

"User impact: Users may be unable to access multiple Microsoft 365, Azure, and Dynamics 365 services, including the Service Health Dashboard.

"More info: Any service that leverages Azure Active Directory may be affected. This includes but is not limited to Microsoft Teams, Forms, Exchange Online, Intune and Yammer.

"Current status: We are currently rolling out a mitigation worldwide. Customers should begin seeing recovery at this time, and we anticipate full remediation within 60 minutes.

"Scope of impact: This issue could affect any user."

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Sam Varghese

Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.

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