Microsoft 365 stands as Microsoft's premier offering, catering to millions of enterprise clients and general consumers across the globe. Even with a series of price hikes, it continues to enjoy immense popularity. Yet, in recent times, the performance of Microsoft 365's services has taken a hit, with frequent outages becoming an all-too-common occurrence over the past few months. For instance, on the evening of October 8, 2025, Microsoft 365 faced a significant service disruption. This incident left users worldwide unable to access crucial services, including Microsoft Teams, Exchange Online, and the Management Center. Microsoft swiftly acknowledged the problem and activated a top-tier response mechanism. Following an investigation, it was discovered that abnormal directory operations within the dependent service system were to blame. These irregularities impacted user authentication processes and the handling of service requests. To mitigate the issue, engineers carried out traffic rebalancing operations. They redirected service requests away from the malfunctioning components and towards healthy nodes. This strategy effectively eased the strain on the faulty directory service. By the early hours of October 9, the affected services gradually resumed normal operations. Moreover, on July 10, 2025, Exchange Online encountered a major global outage. This outage left millions of users unable to access their mailboxes across various platforms for more than 11 hours. Microsoft's initial probe revealed that some mailbox infrastructure was performing below the expected efficiency levels. Further investigation confirmed that a recent service update had, inadvertently, blocked access for certain users. This blockage was traced back to failures in the authentication components. These incidents serve as a stark reminder that even tech giants are not immune to technical glitches. Cloud service providers must allocate significant resources towards constructing redundant systems, refining network configurations, and establishing robust emergency response frameworks to better handle such situations in the future.