Digital sovereignty vs. data sovereignty: what’s the difference?

Digital sovereignty and data sovereignty get used interchangeably in almost every conversation about cloud strategy, but they describe different things.

Data sovereignty governs who can access your data and under which law it falls.

Digital sovereignty goes much further and covers control over operations, technology, and the supply chains behind them.

As Managing Director at DECODE’s German office, I regularly talk to companies rethinking their cloud strategy, often triggered by new regulatory requirements or geopolitical uncertainty.

Many believe that a German or EU data center already settles the question of sovereignty.

In practice, that’s only part of the answer. In this article, I’ll show exactly where the difference lies and why it matters for your IT decisions.

Digital sovereignty vs. data sovereignty: why they get confused

Both terms show up in the same sentence because they stem from the same concern: dependency on non-European technology providers.

And that concern is measurable. According to a recent Bitkom survey, 85% see Germany as too dependent on US cloud providers, a rise from 78% the year before.

That number alone doesn’t explain what companies should actually change. Data sovereignty and digital sovereignty address different problems.

Companies that blur the two often end up making only a superficial decision, such as “we’ll switch to a German provider,” without addressing the underlying risks.

There’s also a practical reason for the confusion: providers like to market “data sovereignty” as a complete sovereignty promise, because it sells well.

A data center in Frankfurt doesn’t automatically answer who has support access, or where the underlying code actually comes from.

What is data sovereignty? A clear definition

Data sovereignty is the ability to fully determine where your data is stored, who can access it, and under which law it’s handled.

It’s about control over the data itself, not control over the systems that process it.

Data location, access, and jurisdiction

Three questions determine whether real data sovereignty exists.

First: where is the data physically located?

Second: who has technical and administrative access, including for support?

Third: which jurisdiction applies if authorities demands disclosure?

Many companies answer only the first question and consider the topic settled.

But a server in Germany doesn’t automatically mean foreign authorities can’t demand access, if the provider is a subsidiary of a non-European parent company.

GDPR vs. the US CLOUD Act: the legal basis for data sovereignty

The General Data Protection Regulation (GDPR) governs how personal data may be processed within the EU, regardless of where the provider is headquartered.

It’s the legal basis for data sovereignty in Europe and requires companies to document the entire data flow in a traceable way.

The US CLOUD Act partially breaks that logic. It allows US authorities to compel US companies to hand over data, even if that data is physically stored in Europe.

For companies using subsidiaries of large US hyperscalers, this can be a serious risk, regardless of which data center location they choose.

That’s exactly why a provider headquartered and hosting exclusively within the EU reduces this risk far more than a European data center run by a US corporation.

What is digital sovereignty?

Digital sovereignty includes data sovereignty but goes much further. It’s a company’s ability to independently control and evolve its entire digital infrastructure, from operations to technology, not just whether its data is legally protected.

Operational sovereignty: can you switch cloud providers?

Operational sovereignty means you can run, maintain, and, if needed, switch your IT systems without depending on a single provider.

This includes questions like: can you change providers without jeopardizing operations? Do your teams understand the systems well enough to act on their own in the event of an outage?

This is also where the NIS2 Directive (Network and Information Security Directive 2) comes in.

It requires companies in many sectors to actively manage supply-chain and critical-infrastructure risk, precisely the dependencies that either strengthen or undermine operational sovereignty.

A company that has delegated its entire operational capability to a single cloud provider will struggle to meet this requirement in practice.

The EU Data Act reinforces this point further. It obliges cloud providers to make switching to another provider technically and contractually easier, directly strengthening the switching capability that operational sovereignty is built on.

Technological sovereignty: open standards vs. vendor lock-in

Technological sovereignty asks whether you actually understand and control the tech stack your business runs on, or whether you depend on proprietary black boxes.

Companies with high technological sovereignty rely on open standards, documented architectures, and teams who genuinely know the code and infrastructure.

This also ties into regulatory readiness.

The EU AI Act requires traceable risk management systems and logging for high-risk AI systems, requirements that are far easier to meet when a company understands its own systems rather than buying them as a finished black-box product.

Digital sovereignty vs. data sovereignty: a side-by-side comparison

The difference is clearest when you put both concepts side by side: data sovereignty asks “where is my data and who can access it,” digital sovereignty additionally asks “who controls the systems, operations, and technology behind it.”

A company can achieve full data sovereignty and still not be digitally sovereign, for example if it uses an EU provider but is completely dependent on that provider’s proprietary platform and couldn’t switch if it had to.

Why data sovereignty alone isn’t enough for real independence

Data sovereignty answers the legal questions, but not the operational ones. A company can meet every compliance requirement for data storage and still end up in a dangerous dependency if its entire operation hinges on a single provider.

This concern is currently driving many cloud decisions. 64% are reconsidering their cloud strategy, because they feel forced to by current US policy, up from 50% the year before.

At the same time, 80% want European hyperscaler alternatives, while 71% still currently use US cloud offerings, even though only 8% would actually prefer them.

These numbers reveal a gap between preference and reality. Companies know that data sovereignty alone isn’t enough, but they often don’t act on it because a full switch takes effort.

37% would use a German cloud, even if that means fewer features or higher costs, up from 27% the year before.

That willingness to accept trade-offs shows that this is now a strategic priority for many companies.

How to build a digital sovereignty strategy: 4 steps

For your strategy, this means data sovereignty is the starting point, not the destination.

If you want real independence, you need to look at operations, technology, and legal compliance together.

Based on my experience with clients working through this, these four concrete steps are worth taking:

• Map your vendor dependencies. Get an honest overview of which critical systems are tied to a single provider and what a switch would actually cost.
• Document your architecture instead of accepting a black box. Invest in a team that genuinely understands your systems, rather than relying entirely on external maintenance contracts.
• Use NIS2 requirements as a trigger. Use the risk assessment of your supply chains, which you already have to do, to find dependencies you’d otherwise overlook.
• Put the EU AI Act in perspective. From August 2026, only the EU AI Act’s transparency obligations apply, such as labelling requirements for chatbots and generated content, plus duties for providers of general-purpose AI models. The infrastructure-relevant high-risk obligations were pushed back to December 2027 by the Digital Omnibus. That’s extra time you should use to prepare your systems rather than adapting at the last minute.

Companies that take these four steps seriously gain a clear edge over those that treat sovereignty as purely a question of location.

In short, data sovereignty and digital sovereignty solve different problems.

Data sovereignty protects you against unauthorized data access and legal uncertainty.

Digital sovereignty additionally protects you against operational and technological dependency, which can become just as costly if things go wrong.

The Bitkom numbers show that this distinction is becoming a strategic question for more and more companies.

Companies that think through both levels from the start won’t need to rework their cloud and IT strategy under pressure later.

Looking for a reliable technology partner?

Wondering how sovereign your IT actually is? You’re not alone.

Most companies we talk to have the legal side covered, but few have tackled the harder part: operational and technological dependency on a single provider.

At DECODE, we build custom software and help you shape an architecture your team actually understands, one you can document, audit, and change when you need to.

Our engineers work in the open: open standards, clear documentation, and a tech stack your team can run without us if that’s ever what you need.

Real sovereignty starts with understanding your own systems. We’re glad to help you get there, at your own pace.