AWS Tests European Cloud Independence in October 2026 Disconnection

AWS will disconnect its European Sovereign Cloud from its global network backbone for several hours on 24 October 2026. The test aims to prove the infrastructure can operate independently using only EU-based personnel and resources located within the region in Brandenburg, Germany.

During the exercise, AWS will sever the link to the AWS Global Network backbone and disable a dedicated channel for limited operational data transfers. Traffic will instead route over the public internet via links from European internet service providers. A team composed entirely of EU residents working in the EU will operate the cloud using the region's own hardware and software. Customer content and metadata will remain in the EU, as they do during normal operations, though some operational data typically leaves the bloc.

Stephane Israel, managing director of the AWS European Sovereign Cloud, states the exercise aligns with the European Commission's EU Cloud Sovereignty Framework and Germany's Federal Office for Information Security's C3A criteria. AWS intends to generate technical evidence of operational autonomy. The company does not claim certification from the test, nor does it pretend the region runs in isolation the rest of the year. Customers may experience short disruptions as network routes converge. Regulators will be informed after the test, and AWS states customers can use the results in their compliance packages.

European Startups Build Alternative Infrastructure

A wave of 2026 funding highlights growing investment in homegrown cloud layers aimed at reducing reliance on non-European providers. These startups are building from Kubernetes management to AI infrastructure.

Together, these five financings represent €117.1 million. Their approaches vary. Clastix reduces operational complexity while letting customers retain hardware control. Velatir deliberately built its platform using European-owned infrastructure instead of American hyperscalers. Cannes-based PoliCloud, which secured €7.5 million in 2025, develops decentralised computing for cities as an alternative to large centralised data centres.

Framework Aims to Standardise Multi-Provider Access

In September 2026, Paris-based Cycloid was selected to provide the developer portal for the European Commission's six-year, €180 million sovereign-cloud procurement framework. Announced in April 2026, the framework provides access to cloud services through four European provider groups: Post Telecom and its partners, STACKIT, Scaleway, and Proximus and its partners.

Cycloid's technology is intended to give up to 5,000 European Commission developers a common interface for accessing these different providers. Benjamin Brial, founder and CEO of Cycloid, said, "A sovereign cloud framework is only as sovereign as the choices it leaves open."

Experts Distinguish Technical from Legal Sovereignty

Experts note the AWS test addresses only part of the sovereignty challenge. Fadi Dasus, a senior cloud security architect, frames sovereignty in two areas: technical and legal. The technical question is whether the service stops if the US link is cut. The legal question is whether US law can order a data handover or service shutdown. A successful test would show the technical aspect is no longer entirely under US control, but the legal aspect remains subject to US parent jurisdiction.

Lars Larsson Lundsten, field CTO at European platform alternative Elastisys, called the AWS architecture a marvel of engineering but cautioned, "You can't solve legal problems with technical solutions." He credited AWS for not claiming more than what the test proves. Anders Bjørnestad, a principal consultant, distinguishes between 'can someone get access to my data' and 'can someone shut me off.' He states the test addresses only the latter shut-off risk, while data access can be mitigated with proper encryption. Commenter Roelf Zomerman argued that laws like the US CLOUD Act operate through specific criminal investigations, and that hosting with EU providers does not automatically imply safety from them.

For European businesses, the challenge extends beyond data location to maintaining control over systems and the ability to change providers. The AWS disconnection test is a concrete step, but it will not settle wider questions concerning corporate ownership, legal jurisdiction, or customer dependence on individual technology providers.