Microsoft Azure users experienced elevated latency and disrupted connections after multiple undersea fibre-optic cables in the Red Sea were cut on September 6, 2025, forcing cloud traffic to be rerouted through longer, more congested paths and exposing fragilities in the global internet backbone that directly affect cloud performance and enterprise continuity.
Background
Undersea fibre-optic cables carry the vast majority of global internet, cloud, and voice traffic. Critical systems such as...