Microsoft Details Causes & Prevention of Recent Office 365 Multi-Factor Failure
Microsoft Details Causes & Prevention of Recent Office 365 Multi-Factor Failure Multi-factor authentication is meant to lock out cyber attackers. What happened instead last November 19 was that legitimate users of Microsoft Office 365 were locked out for hours from their accounts. For 14 hours, between 4:39 UTC and 18:38 UTC last November 19, users of Microsoft Azure AD Multi-Factor Authentication (MFA) services were locked out from their accounts. These include users of Office 365, Azure, Dynamics and other services which use Azure Active Directory for authentication. The outage affected users in Europe, Asia and the Americas regions, including the U.S. Government and the U.K. Parliament. According to Microsoft, the following 4 reasons contributed to the Azure AD Multi-Factor Authentication (MFA) service outage: The first cause of the outage identified…