This incident, which is already under investigation, is the third to disrupt the company's ecosystem in less than a week, generating concern among customers who rely on these tools for their daily work.
The company acknowledged the issue this Monday, around 06:06 AM (Luanda time), through a service alert in the Microsoft admin center. In the statement, the tech giant states that "some users may be unable to access Microsoft 365 applications," explaining that the impact is limited to users served by the affected infrastructure.
Nearly four hours after the incident began, Microsoft said it continues to "analyze service telemetry, along with recent changes made, to help identify the root cause and define a clear path to resolution."
This new issue follows a particularly challenging week for the stability of Microsoft services. Last Wednesday, a global outage prevented access to services such as Microsoft Teams and Exchange Online. The outage was attributed to issues with Multi-Factor Authentication (MFA) through Microsoft Entra.
A day later, on Thursday, another outage, this time related to Azure's content delivery network (CDN), once again left users without access to several Microsoft 365 services in Europe, Africa, and the Middle East.
These incidents follow another significant outage in September, when an Exchange Online outage affected email and calendar access worldwide due to a code error that caused excessive CPU consumption on servers. The recurrence of these issues raises questions about the infrastructure resilience of one of the world's largest cloud service providers.
