Microsoft 365 Outage Disrupts Krungthai Bank Email Systems

MGR Online•Economy•13m ago

Reader Briefing

A global Microsoft 365 outage caused temporary email service disruptions for Krungthai Bank on November 13, 2026.

•Microsoft 365 experienced a widespread global outage affecting Outlook, Exchange Online, Microsoft Teams, and Copilot.
•Krungthai Bank reported that its email receiving and sending systems were temporarily unable to operate normally.
•The disruption began on November 12 according to US time, or early morning November 13, 2026, Thailand time.
•Microsoft stated that initial investigations found no evidence that the outage was caused by a cyberattack.

•The outage began on November 12 according to US time, which corresponded to the early morning of November 13, 2026, in Thailand.
•Krungthai Bank experienced temporary disruptions to its email receiving and sending systems.
•Krungthai Bank advised customers with urgent matters to contact Relationship Managers (RM) by phone or the Krungthai Contact Center.
•Microsoft identified server abnormalities and infrastructure workload issues across several regions.
•Microsoft has begun recovering some services but continues to monitor system stability.
•Microsoft confirmed that initial checks show no evidence of a cyberattack causing the incident.
•There is no information in the announcement confirming that Krungthai Bank's mobile banking, transfer, or payment systems were affected.

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Microsoftℹ️

The global provider of Microsoft 365, Outlook, Exchange Online, Microsoft Teams, and Copilot services.

Krungthai Bank(ธนาคารกรุงไทย)ℹ️

A Thai bank whose email systems were disrupted by the Microsoft 365 outage.

Krungthai Contact Center

The 24-hour customer service center of Krungthai Bank.