Microsoft Attributes Recent Outage of Outlook Web to Code Error in Recent Update

The tech giant has attributed the issue to a problematic code change in a recent update, which left thousands of users unable to access their accounts and use essential communication tools. We’re working to revert the recent code change and reviewing data from the reproduction to determine any additional next steps,” the company stated in an update. In early March, the company faced a similar situation when a code change led to disruptions in Outlook and other Microsoft 365 services. “We identified a recent change made to a portion of Outlook on the web infrastructure, that may have resulted in impact. After several hours of work, Microsoft announced that they had successfully reverted the change and confirmed that the impact was resolved for all users. For more information, please refer to EX1036356 in the admin center,” the company stated in their final update on the incident. The company directed users to the admin center for more information under the incident reference number EX1036356. We identified a recent change made to a portion of Outlook on the web infrastructure, that may have resulted in impact. “We successfully reverted the change and confirmed that the impact is resolved for all users. We’re reverting the change to remediate the issue and closely monitoring,” Microsoft reported. According to DownDetector, a website that tracks service disruptions, thousands of users reported issues with Microsoft’s services within hours of the outage’s onset. As Microsoft continues to investigate the incident, users and IT administrators are encouraged to stay informed about potential effects and report any ongoing issues through official channels. We successfully reverted the change and confirmed that the impact is resolved for all users. The outage began early Wednesday afternoon, with users reporting difficulties logging into their accounts, accessing the Outlook website, and experiencing server connection problems.

This Cyber News was published on cybersecuritynews.com. Publication date: Thu, 20 Mar 2025 12:50:08 +0000


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