A prolonged Microsoft 365 outage disrupted Exchange Online, Teams, and collaboration tools starting November 12, exposing how reliant organizations are on a single vendor’s ecosystem for critical infrastructure. Industry experts and rivals highlighted the risks of such concentration, noting that outages in dominant platforms create significant single points of failure that can stall businesses and public services. The incident underscores ongoing challenges in vendor dependency and raises questions about resilience, backup strategies, and the security implications of cloud service centralization.
