Overview

• Microsoft services, including Outlook and 365, experienced a global outage on Saturday, impacting millions of users worldwide.
• The outage began around 3:30 p.m. ET, with reports peaking at over 40,000 on Downdetector for Outlook and Microsoft 365 services combined.
• Microsoft identified the issue as a suspected code problem and reverted the code to mitigate the impact, restoring most services by late afternoon.
• Users reported issues accessing email, calendars, and other applications, with some also experiencing login errors across Microsoft services.
• The company is continuing to monitor the situation to ensure full recovery and has not yet provided detailed comments on the root cause of the outage.