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Windows Central
Windows Central
Technology
Jez Corden

Microsoft: Yesterday's Azure and 365 server outage was caused by a DDoS attack ... at least at first

Server farm.

What you need to know

  • Microsoft's Azure data center infrastructure suffered an outage yesterday. 
  • Services powered by Azure systems suffered downtime, including banks, and other major businesses. Microsoft's own services like Outlook were also disrupted. 
  • Microsoft was quick to mitigate the outage, and today, issued an explanation for the downtime. 
  • A distributed denial of service (DDoS) attack triggered the initial outage, but then Microsoft amplified the issues with a faulty mitigation measure.  
  • Microsoft apologized for the downtime. 
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