On October 20, 2025, Amazon Web Services (AWS), the backbone of much of the internet, suffered a major outage in its US-EAST-1 region. The disruption cascaded across the globe, affecting everything from banking apps and airlines to smart home devices and gaming platforms. For hours, millions of users were locked out of critical services, and businesses scrambled to respond.
The AWS outage wasn’t just a technical hiccup. It was a wake-up call.
🌩️ Cloud Platforms Can (and Do) Fail
Despite their scale and sophistication, hyperscale cloud providers like AWS are not invincible. The outage was triggered by a DNS resolution failure, a seemingly small issue that rippled across dependent services worldwide. The incident exposed a hard truth: centralised infrastructure, even when distributed across regions, can still suffer single points of failure.
🔁 Disaster Recovery Is Not Optional
Every organisation using public cloud services must have a robust Disaster Recovery (DR) plan. This means more than just backups, it means understanding how your systems behave during outages, how quickly you can recover, and what dependencies might break.
The Financial Conduct Authority (FCA) has already issued guidance urging financial institutions to prepare for extended cloud outages. But this isn’t just a finance issue, all sectors should take note.
💾 Keep a Copy Outside the Cloud
One of the most overlooked strategies is maintaining a copy of critical data outside the public cloud. Whether it’s on-premises, in a private cloud, or with a trusted third-party provider, having an independent backup can be the difference between downtime and disaster.
🛡️ Private Cloud Providers Offer Resilience and Relationships
Private cloud providers like CT offer more than infrastructure. We design services with resilience at the core, no single points of failure, tailored architectures, and direct access to support teams.
When AWS went down, how many businesses had a direct line to someone who could help? With hyperscalers, support often means ticket queues and automated responses. With CT, it means a conversation with someone who knows your environment.
📉 SLAs Aren’t Enough — What’s Your Continuity Plan?
Service Level Agreements (SLAs) are often misunderstood. They define availability targets, not guarantees of uninterrupted service. In an extended outage, how would your organisation continue to operate? Who would you call? What systems would you fall back on?
These are the questions every business should be asking, and answering, before the next outage hits.
Final Thoughts: AWS October 2025 Outage
The October 2025 AWS outage was a reminder that convenience in cloud computing often comes at the cost of control. It’s time to rethink resilience, revisit DR plans, and build cloud strategies that are not just scalable, but survivable.
If you’re ready to explore how CT can help design a cloud environment built for continuity, let’s talk.
