Microsoft published a preliminary root cause analysis of the major Azure outage earlier this week. The outage affected several Microsoft services, including Teams, Office 365, and Xbox Live. An issue related to the rotation of digital keys caused the outage. Earlier this week, an Azure Active Directory outage caused several major Microsoft services to go down, including Teams, Xbox Live, and Office 365. The outage impacted hundreds of millions of people who rely on the services for work, education, and entertainment. Microsoft recently published a preliminary root cause anaylsis for the outage (via ZDNet. Here is Microsoft's summary of the cause of the outage: