What caused the October 2025 AWS outage?

The outage was caused by a latent defect in DynamoDB's Domain Name System (DNS) within the US-East-1 region.

How can AWS users improve DNS resilience in US-East-1?

Users can manually enable the Accelerated Recovery feature in Amazon Route 53 for faster DNS disruption recovery.

Which industries will benefit from AWS's new DNS recovery feature?

The feature primarily benefits mission-critical sectors like banking, FinTech, and SaaS.

Home / Technology / AWS Fixes US-East-1 DNS Outage Vulnerability

AWS Fixes US-East-1 DNS Outage Vulnerability

30 Nov

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Summary

AWS introduced a new feature for 60-minute DNS recovery in US-East-1.
The update targets mission-critical applications in banking and FinTech.
This feature requires manual activation by users in the AWS console.

AWS Fixes US-East-1 DNS Outage Vulnerability

Amazon Web Services is enhancing its US-East-1 region's resilience following a significant outage in October 2025. The cloud provider has introduced a new business-continuity feature for Amazon Route 53, promising a 60-minute recovery time objective for Domain Name System (DNS) disruptions. This crucial update aims to ensure customers can continue managing DNS and provisioning infrastructure even during outages.

The new feature is particularly designed to benefit mission-critical applications in industries such as banking, FinTech, and Software as a Service (SaaS). It will enable users to rapidly provision standby cloud resources or reroute traffic when necessary, mitigating the impact of unexpected service interruptions.

However, this enhanced stability measure is not enabled by default. AWS Route 53 users must manually activate "Accelerated Recovery" through the AWS Management Console's Hosted Zones section. This proactive step addresses ongoing concerns about the operational stability of the US-East-1 region, known for its high traffic density and past outage proneness.

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