After cloud outage: Microsoft: The disruption was due to a network upgrade

Redmond. The long global disruption to Microsoft's online services was caused by a home-grown problem and not a cyberattack or AI activity, according to the company. The software company explained that the reason was ultimately a previously carried out upgrade of the network capacity. A problem that was introduced only became apparent after recent network changes, it was said.

The outage, which began Thursday and continued into Friday, cut off businesses and consumers worldwide from core Microsoft cloud offerings. Not only the Outlook email service was affected, but also services from the Microsoft 365 cloud package in general. With the Office communications service Teams, for example, scheduling meetings and calendar connections did not work properly. In addition, the AI ​​assistant Copilot and interfaces to third-party providers were temporarily disrupted.