Lessons learned from this week's AWS outage

AWS outage

United Kingdom, Oct 24, 2025

Building resilience into your cloud architecture is crucial

 

This week's Amazon Web Services (AWS) outage was a reminder that even the world's largest cloud provider isn't immune to disruption. 

On October 20, 2025, a DNS-related fault in the US-EAST-1 (Northern Virginia) region caused widespread service failures — affecting e-commerce platforms, smart devices, enterprise systems, and more.

While AWS restored most services later that day, the outage rippled across the internet. Businesses lost access to critical systems, consumers were locked out of apps, and IT teams scrambled to respond. It highlighted a reality we sometimes overlook: cloud dependency without resilience is a business risk.

What Actually Happened

AWS confirmed that the issue stemmed from a fault in its Domain Name System (DNS) resolution process. DNS is a foundational service that enables systems to find and connect to AWS resources. When it fails, everything built on top of it stalls, from authentication and APIs to monitoring and billing.

This wasn't a cyberattack, but a classic case of infrastructure fragility in a hyperconnected ecosystem. And because so many critical services are concentrated in a few AWS regions, the impact was global.

Why This Matters

For enterprises, the takeaway is clear: Being in the cloud doesn't automatically mean being resilient. Outages like this one have shown that even the most reliable platforms can and will fail.

The consequences of downtime extend far beyond IT:

  • Lost productivity and revenue
  • Degraded customer and partner experience
  • Security and compliance blind spots during outages
  • Erosion of trust and brand reputation

Modern business continuity demands more than high availability within a single cloud region it requires architectural resilience across regions, platforms, and environments.

How Logicalis Can Help

At Logicalis, we help organisations embed resilience into their digital fabric spanning public cloud, private cloud, and on-premises systems. Whether your strategy is multi-cloud, hybrid cloud, or a combination of both, we design architectures that keep your business operational when disruption strikes.

Here's how Logicalis can help you prepare for the next outage:

  • Resilient architecture design
    Build hybrid and multi-cloud solutions with automated failover.
  • Security continuity planning
    Ensure monitoring, logging, and identity services remain active even during provider outages.
  • Business continuity and disaster recovery (BC/DR) integration
    Develop, document, and test outage playbooks so your teams know how to respond quickly and effectively.
  • Continuous improvement and monitoring
    Establish proactive detection, regular testing, and post-incident review processes to evolve resilience over time.

Preparing for the Next Outage

The AWS outage isn't a failure of cloud computing; it's a reminder that resilience is an intentional design choice that needs to be architected into environments.
Enterprises that anticipate disruption and architect around it will protect their customers, data, and brand reputation when the unexpected happens.

Logicalis partners with organisations worldwide to design, secure, and optimise hybrid and multi-cloud environments that withstand disruption and support innovation. Whether you operate on AWS, Azure, or in a hybrid framework, we can help you build an architecture that keeps your business running, whatever comes next.

 

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