Microsoft 365 Outage Disrupts Global Financial Trading
A 12-hour Microsoft 365 failure left brokerages across several international markets relying on manual workarounds.
Updated on Nov. 13, 2026 in Data Centers
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A 12-hour global outage of Microsoft 365 disrupted email, Teams and Outlook services used by financial firms. Retail FX brokers reported lost login and trade settlement communications while support channels were delayed.
Why it matters
Financial firms depend on cloud email and collaboration platforms for client logins, trade execution alerts and settlements, so a single service failure can ripple across markets. The episode highlights how concentrated reliance on one cloud provider can leave trading operations exposed when fallback systems are not ready.
The outage lasted 12 hours and generated more than 130,000 Downdetector reports in the United States at its peak, based on user-submitted problem reports. The stub does not state the root cause or the full count of affected firms and accounts.
The players
Microsoft
Microsoft is a US technology company whose Microsoft 365 suite, including Exchange Online, Teams and Outlook, is widely used by businesses and financial institutions worldwide.
The details
The outage heavily affected Microsoft Exchange Online and continued to disrupt Teams, Outlook and Copilot. Brokerages including SBI FX Trade, Golden Way Securities and CMC Markets in Singapore warned that email-based login and execution messages were not being delivered, and some traders switched to phone calls and WhatsApp.
Timeline
Outage lasted 12 hours, with a peak in reports during the disruption.
Coverage was published on 13 November 2026.
Data Center Dependence
The disruption to Exchange Online illustrates how concentrated reliance on a single hyperscale cloud service can cascade into trading operations that depend on email-based logins and execution alerts.
Customers of online brokerages may face delayed support and missed login or trade confirmations during a cloud outage. Users who rely on email for account access should keep alternative contact methods available.
The takeaway
Organizations that depend on cloud email for trading should maintain tested manual fallback procedures so client communications and settlements continue during an outage.
Further reading
For background on the cloud infrastructure behind such outages, see Data Centers.
Source note: This article includes information reported by Finance Magnates.
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