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

    Posted on November 26th, 2018 at 12:52 Comment on the AskWoody Lounge

    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.