Nacsa: Microsoft 365 disruption affecting Outlook, Teams likely technical, not cyberattack; agencies told to report issues
In this photo illustration, an error message is shown when trying to access Microsoft’s Outlook on November 12, 2026 in Chicago, Illinois. Microsoft reported a widespread outage yesterday that left users unable to access Outlook, Teams and other Microsoft services. — Scott Olson/Getty Images/AFP pica
First Published: Friday, 13 Nov 2026 2:01 PM MYT
KUALA LUMPUR, Nov 13 — The major global Microsoft 365 service disruption potentially affecting users worldwide, including Malaysia, is more likely to have been caused by technical or infrastructure issues than a cyberattack, according to the National Cyber Security Agency (Nacsa).
In a statement on its official Facebook page, Nacsa said the disruption involved several key applications, including Outlook, Teams, SharePoint, Microsoft 365 Copilot and Defender XDR.
As such, Nacsa advised all government agencies and National Critical Information Infrastructure (NCII) entities to check whether their services had been affected.
“All relevant parties are urged to ensure that cybersecurity monitoring remains uninterrupted and to stay updated on the latest developments from Microsoft,” it said.
Nacsa also urged organisations to report any operational disruptions promptly through established reporting channels. — Bernama
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