The Zhitong Finance App learned that on November 13, the Hong Kong Stock Exchange (00388) issued a trading notice stating that due to a failure in Microsoft's (MSFT.US) global system, the Hong Kong Stock Exchange's email service is currently affected. The Hong Kong Stock Exchange also confirmed that all of its markets are operating normally, that the situation is being closely monitored, and that the latest information will be provided in due course.

According to reports, Microsoft 365, a subsidiary of Microsoft, experienced a large-scale service outage in the early morning of the 13th, and services such as Outlook, Teams, and Copilot were all affected. Microsoft said that the remaining infrastructure was overloaded due to “unexpected unavailability” of a large number of servers. Additionally, Microsoft Executive Vice President Charles Lamanna said on social media that “there is no indication” that the failure was caused by a cyber attack.

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