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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.