
The AWS European Outage Case Study: How a 15-Hour Cloud Failure Became Europe's Digital Sovereignty Reckoning
A 15-hour outage in Amazon Web Services' US-EAST-1 region on October 20, 2025 took down Duolingo, Fortnite, Slack, Peloton, PlayStation Network, Signal, and over 1,000 companies serving more than 4 million users — and converted a previously abstract European digital sovereignty debate into concrete policy action that reshaped EU regulatory posture on cloud infrastructure through 2026.









