Cloud Infrastructure Concentration & AWS Outage

Market Power, Critical Vulnerabilities & the October 2025 Incident

Global Cloud Market Share (Q4 2024)

AWS Outage Timeline (Oct 20, 2025)

Financial Impact by Hour

Services Affected by Outage

⚠️ October 20, 2025 AWS Outage - By The Numbers

Duration: 3.5 hours • Region: us-east-1 (N. Virginia) • Downtime Cost: ~$4.15B • Affected: EC2, S3, Lambda, RDS, DynamoDB, SQS, SNS • Root Cause: Network device misconfiguration in us-east-1a

31%

AWS Global Market Share (Q4 2024)

20%

Microsoft Azure Market Share

51%

Combined AWS+Azure Share

$4.15B

Estimated Outage Cost (Oct 2025)

40%

N. Virginia Regional Concentration

$1.2B/hr

AWS Peak Downtime Impact