Microsoft's Multi-Factor Authentication Service Goes Down For Second Week in a Row

Just over a week after a global problem with its multi-factor authentication (MFA) service plagued a number of users, another Microsoft MFA outage is impacting a number of customers. Many, but not all, of the customers reporting problems today seem to be U.S.-based. From a report: Starting around 9:15 a.m. ET, a number of Office 365 customers began reporting on Twitter that they were unable to sign into that service because of an MFA issue. Office 365 is one of a number of Microsoft services that uses Azure Active Directory MFA to authenticate. Around 10:15 a.m. ET, Microsoft's Azure status dashboard was updated to reflect the possibility of a cross-region potential outage impacting MFA. 'Impacted customers may experience failures when attempting to authenticate into Azure resources where MFA is required by policy. Engineers are investigating the issue and the next update will be provided in 60 minutes or as events warrant,' the dashboard status said.

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