When Even the Cloud Caught a Cold: Inside the AWS and Azure Outages of 2025

Update: 2025-11-03

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This story was originally published on HackerNoon at: https://hackernoon.com/when-even-the-cloud-caught-a-cold-inside-the-aws-and-azure-outages-of-2025.

In October 2025, AWS and Azure suffered major outages, exposing the fragility of the cloud and redefining resilience for modern internet infrastructure.

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In October 2025, both AWS and Microsoft Azure—the pillars of today’s cloud—suffered massive outages just nine days apart. AWS US-EAST-1 collapsed under DNS and DynamoDB control-plane failures, while Azure Front Door spread a faulty global config that broke routing and authentication across Microsoft 365, Outlook, and Teams. The twin incidents exposed how fragile the “always-on” internet really is and cost billions in downtime.

The key lesson? High availability isn’t true resilience.
Multi-region setups aren’t enough; automate health checks, test failovers, and design for failure as the default. In the cloud era, resilience is not a feature—it’s a culture.