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AI tools and data in Europe: how to check

Updated on 8 October 20265 min readBy aidock

“Hosted in the EU” means that the servers storing the data are located in the European Union. It says nothing about the provider’s nationality, or about access from abroad. To check, read the data processing agreement, the list of sub-processors and the section on transfers. A transfer outside the EU is possible if it is covered by safeguards, such as standard contractual clauses.

Three ideas not to confuse

“Hosted in the EU” is a common claim. It is useful, but it only answers part of the question.

IdeaWhat it tells youWhat it does not tell you
HostingWhere the servers that store the data areWho can access them from abroad
Provider’s nationalityWhich country’s law the company is subject toWhere the data is stored
TransfersWhether the data leaves the EU, and with what safeguardsWhether the tool complies with the rest of the GDPR

A European provider can use a sub-processor outside the EU. A non-European provider can host the data in Europe. So you need to check all three points.

What the GDPR says about transfers

Transferring personal data outside the European Union is possible. A sufficient and appropriate level of protection must be ensured, using a legal tool. The main ones are:

  • an adequacy decision: the European Commission recognises that a country protects data properly. For the United States, a decision of 10 July 2023 plays this role, under certain conditions;
  • standard contractual clauses: model contracts adopted by the European Commission;
  • binding corporate rules: internal rules that govern transfers within a group of companies.

Also think about access from abroad, for example for technical support. Ask whether it happens and how it is governed.

Providers subject to non-European law

The CNIL, France’s data protection authority, points out a risk for data stored by a company that is subject to non-European law. Such data may be exposed to a risk of having to be handed over to that country’s public authorities. The CNIL adds that this risk is usually considered limited for non-sensitive data entrusted to providers from countries recognised as “adequate”. For sensitive or strategic data, this point deserves more attention.

Where to look in a provider’s documentation

  1. The privacy policy: where processing takes place, retention periods, use of data for training.
  2. The data processing agreement (DPA): it governs the provider’s role as processor and sets out transfers and their safeguards.
  3. The list of sub-processors: name, role and country of each company involved.
  4. The security or compliance page: choice of hosting region, security measures, contact.
  5. The terms of the plan: some safeguards only apply to professional plans.

Warning signs

  • No mention of where the data is hosted.
  • “Hosted in Europe” without a list of sub-processors.
  • No data processing agreement available, or a request left unanswered.
  • Transfers outside the EU with no mention of safeguards.
  • Different terms for free and paid plans, without details.
  • Documentation you cannot find, or that contradicts itself from one page to another.

In practice

For each tool in the Index, aidock shows whether the data is hosted in the EU. It also shows the use of data for training and whether there is a data processing agreement. The date of the check and the sources are displayed. This information can change: reread the provider’s documentation before you commit. For the other GDPR points, see our six questions.

Frequently asked questions

Is it a problem if a US provider hosts the data in Europe?

Not necessarily. The data stays in Europe, but the provider remains subject to the law of its own country. The CNIL often considers this risk limited for non-sensitive data. For sensitive data, look for stronger safeguards.

Are standard contractual clauses enough?

They are a recognised tool for covering a transfer outside the EU. They do not exempt you from the rest of the GDPR: data minimisation, informing people, security and retention periods.

Where can I find a tool’s list of sub-processors?

Usually in the data processing agreement or on a dedicated page, often called “sub-processors”. If you cannot find it, ask the provider for it in writing.

Sources checked

This guide gives information, not legal advice. Check the official text in force for your situation.

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