Microsoft 365 services, including Outlook and Teams, experienced widespread disruption across Australia beginning early Friday morning. Reports of the outage began surfacing just before 5am AEST, with the problem reaching its peak around 9:22am when over 5,500 users reported difficulties sending and receiving emails and accessing online meeting platforms.
Microsoft indicated the issue stemmed from a configuration change affecting its servers, leading some systems to become overloaded and go offline. The company stated it had detected no evidence of a cyber-attack. By Friday afternoon, Microsoft acknowledged that remediation efforts were not progressing as expected.
Multiple government and public service operations were disrupted by the outage. Service NSW, a primary access point for government services, implemented a callback system for customers unable to complete urgent transactions and encouraged people to postpone visits to service centers. Federal law enforcement and intelligence agencies reported that their systems were affected, though operations continued on secondary levels. Courts in South Australia and Victoria experienced email disruptions, though scheduled hearings proceeded. Schools using cloud-based administration platforms were unable to access email services, reverting to phone calls for urgent communications.
Healthcare facilities reported administrative complications related to prescription verification systems that rely on Microsoft email authentication, prompting some clinics to temporarily return to paper-based prescription processing. However, patient care operations remained unaffected. Major retailers such as Coles and Woolworths continued normal in-store operations, though one supermarket chain’s internal communications were impacted.
Authorities warned the public to remain cautious of potential scam attempts during the disruption. Technical experts suggested the outage resembled a cascading network failure caused by misconfiguration at the server layer, potentially similar to a major incident affecting another Australian network provider in 2023.
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