Data sovereignty: who really controls your data?

1. Data residency versus data sovereignty

Data residency describes physical location: your database sits in Frankfurt or Amsterdam, for example. Data sovereignty describes legal and operational control: which laws apply to the party running the infrastructure, and can a foreign government compel access?

• Residency: where are the disks?
• Sovereignty: who may access them, and under which law?

2. The CLOUD Act and the GDPR

The American CLOUD Act (2018) can require American companies to hand over data to American authorities, even when that data is stored in a data centre outside the United States. This also applies to European subsidiaries of American cloud providers.

The GDPR, by contrast, restricts transfers of personal data to countries outside the EEA. Since the Schrems II ruling of the European Court of Justice (2020), organisations must assess whether data is adequately protected there. The 2023 EU-US Data Privacy Framework now provides a basis, but it is under legal pressure. If you want long-term certainty, you limit your dependence on non-European parties.

3. Three layers of sovereignty

In a software architecture, we look at sovereignty on three layers. Each layer can be arranged separately.

• Storage: where is the data, and who manages the encryption keys? With your own keys (customer managed keys), the provider itself cannot read along.
• Operations: who has administrative access to the systems, including during support and maintenance, and from which country?
• AI: where do the models that process your data run? Prompts and documents sent to an AI service often leave European jurisdiction without anyone noticing.

4. European alternatives

There are mature European providers for hosting, databases, storage and AI. Think of Scaleway, OVHcloud, Hetzner and IONOS for infrastructure, and European models such as Mistral for AI. The large American providers also offer European variants, such as the Microsoft Azure EU Data Boundary. These reduce the risk but do not fully resolve the CLOUD Act question.

5. Three architecture levels

Sovereignty is not an all-or-nothing choice. We distinguish three levels, depending on how sensitive the data is.

• Standard cloud in an EU region: suitable for most internal tools and business applications, with a data processing agreement and solid security.
• Hybrid: a fast, modern interface, for example built with Lovable, connected to a database and server components at a European provider. Personal data then stays under European control.
• Fully sovereign: the entire stack at European providers, with your own key management and European or self-hosted AI models. For healthcare, government and other sectors with the strictest requirements.

6. Where does Lovable fit in?

Lovable is an American-Swedish platform. On Business and Enterprise you choose a European data region for new projects, and Enterprise offers AI processing within the EU. The frontend is distributed globally through a CDN. So the question is not whether you can use Lovable, but which part of the application you place in it.

Is Lovable sufficient? That depends on three questions: how sensitive is the data, what do your clients or regulators require in the data processing agreement, and may prompts and documents pass through a shared AI service? Below you can see how we weigh this per level.

For most business applications, Lovable Cloud in an EU region is sufficient, provided the application itself is properly secured. As the data becomes more sensitive, we keep Lovable for what it does best, quickly building a modern interface, and move the data, logic and AI step by step to a European environment. So you rarely need to reject Lovable for sovereignty reasons, as long as the architecture matches the risk.