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Mary Jo Foley: Microsoft’s self-analysis of what caused the multi-factor authentication meltdown

Posted on November 26, 2018 at 12:52 CST by woody • Comment in the Forums

Remember the bug on November 19 that brought down everybody who was using two factor authorization on Microsoft sites?

We just got an explanation. Per Mary Jo:

Actually, Microsoft unearthed three independent root causes, along with monitoring gaps that resulted in Azure, Office 365, Dynamics and other Microsoft users not being able to authenticate for much of that day.

In a different, but sort-of-related glitch, lots of people are reporting problems today with Exchange Online, Office 365 and Outlook.

https://twitter.com/MSFT365Status/status/1067101513242169344

Office News MFA, Multi-factor authorization, Office outage

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