Blog, News, Tech: 27.01.26AWS outage: digital sovereignty in perspective

On 20 October 2025, the Internet experienced one of the most significant outages in its history. A major failure at Amazon Web Services (AWS) paralysed part of the global web. Thousands of services including banking platforms, payment solutions, collaboration tools, AI applications and entertainment platforms stopped working for several hours. The root cause was a failure in the US-EAST-1 region, the highly concentrated core of Amazon’s cloud infrastructure.

A simple DNS issue on a DynamoDB endpoint triggered a cascade of errors, desynchronising critical services worldwide. Within minutes, part of the Internet became effectively blind, unable to route traffic or authenticate users.

The figures are staggering:

According to estimates reported by many specialist media outlets, large global companies were losing around 75 million dollars per hour during the outage on 20 October.

Amazon alone reportedly suffered losses of nearly 73 million dollars per hour, while other platforms such as Snapchat, Zoom, Roblox, Fortnite, Canva, Slack and Reddit also recorded significant losses.

In total, more than one thousand large companies, including over half of the global Top 500, were directly affected. Nearly eight million users reported difficulties accessing their websites, banking services or online platforms. Major players, from Zoom to Fortnite and from Canva to Slack, saw their operations temporarily disrupted.

A stark reminder: the global cloud, designed to guarantee resilience, revealed itself as a single point of failure.

The impacts were immediate and tangible.

Thousands of teams suddenly found themselves unable to operate:

• Customer and supplier accounts inaccessible.
• Data locked in remote systems.
• Payment software and banking services unavailable.
• Supply chains and automated processes frozen.

This was not a local incident, but a demonstration of global dependence. Entire organisations came to a halt, not because of an internal error, but because they all relied on the same point of fragility.

In just a few hours, the agility promised by the cloud exposed its limits. Dependence had become vulnerability.

For twenty years, the cloud has positioned itself as the promise of a simpler world: faster deployment, pay-as-you-go models and relief from part of the technical burden.

But this promise has a downside. By outsourcing their infrastructure, companies relinquish part of their technological autonomy and expose themselves to risks they no longer fully control.

Today, three players, AWS, Microsoft Azure and Google Cloud, account for more than 70 percent of global traffic. For efficiency reasons, most critical services are hosted in a single region: US-EAST-1. The result is that a local outage can have global consequences.

Redundancy does exist, of course. But it comes at a cost that most companies choose not to bear. Building a truly resilient infrastructure, spread across multiple regions or even multiple providers, requires significant investment. In practice, full continuity often remains theoretical, and the promised resilience gradually turns into structural dependence.

This dependence is not only technical. It is economic, operational and strategic. Every update, pricing change or sudden interruption can undermine the business continuity of client organisations.

At Synergix, we have made a clear choice: no essential IT system should depend on an external entity.
Not as a matter of principle, but out of technical conviction and a requirement for control.

Our infrastructure is built on three simple, structuring pillars:

• Intelligent isolation: our critical systems can operate fully autonomously, independent of global Internet traffic.
• Sovereign redundancy: every essential component has an internal version capable of ensuring continuity without reliance on a third-party provider.
• Total control of dependencies: no tool, API or service is integrated without a viable, controlled local alternative.

In practical terms, this means that our servers, data and processes remain fully operational even when cloud giants experience disruptions.
Our clients continue to issue invoices, access their data and use their internal tools because we control every link in our technological chain.

Synergix’s sovereign approach is not a concept.
It is an operational reality, measured every day in the work of our teams and in the continuity of our clients’ activities.

• No service interruption: our internal systems and those of our clients continue to operate even during global outages.
• Data under control: hosted, encrypted and backed up locally, without passing through third-party platforms.
• Predictability and transparency: Synergix’s infrastructure is stable, controlled and designed for the long term.

For our clients, this translates into full business continuity, even in the most unpredictable situations.

The AWS outage of 20 October 2025 marked a turning point. It reminded us that even the most powerful infrastructures have limits, and that technological control remains the foundation of continuity.

At Synergix, this event simply confirmed a deeply held conviction: continuity is the first value of the digital world.

Our systems did not merely withstand the storm.
They demonstrated that another model is possible: that of an augmented fiduciary, independent, stable and sovereign.

Because in an increasingly connected world, true innovation lies in control.