Microsoft Outage Explained: What Went Wrong and Is Your Data at Risk?
- On Thursday, a Microsoft server failure disrupted Outlook, Teams, and Copilot across 74 countries, with outages persisting into Friday morning affecting thousands of users.
- Microsoft initially attributed the disruption to an 'elevated load' but later clarified that servers unexpectedly went offline, shifting demand onto remaining systems. The company states it found no evidence of malicious activity.
- Downdetector registered nearly 140,000 reports for Outlook alone, while Microsoft says more than 430 million people use its 365 apps. The failure also impacted SharePoint Online and Defender XDR.
- Disruptions spread to government agencies in Singapore and Australia, while healthcare practices and businesses like Workhorse faced operational delays. Paul Spain of Gorilla Technology said companies effectively 'lost a business day.'
- Professor Liu Yang, executive director of NTU's Cyber Security Research Centre, warned that 'redundancy does not necessarily guarantee resilience' when services share underlying infrastructure, highlighting systemic risks from cloud-provider concentration.
32 Articles
32 Articles
The Independent
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Microsoft global outage hits Outlook, Teams and AI services: What went wrong?
Thousands of users faced a major Microsoft outage that disrupted Outlook, Teams and several Microsoft 365 services for more than five hours. The disruption also affected AI platforms such as OpenAI and Anthropic, which rely on Microsoft connectors, while businesses faced operational challenges. Microsoft attributed the problem to server availability and capacity issues, rather than a sudden surge in traffic. But what caused the outage, how many …
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