The Hidden GDPR Challenge in Translation: Incidental Personal Data

When organisations send documents for translation, their focus is usually on accuracy, consistency and turnaround time. Yet those files may also contain names, contact details, signatures, employee information or other data relating to identifiable individuals, even when personal data is not the document’s main subject.

This is commonly referred to as ‘incidental personal data’. Because it is embedded in contracts, reports, manuals, emails and other unstructured content, it can be difficult to identify before a project begins. The challenge grows as documents pass between languages, systems and external partners involved in delivering the translation.

Under the EU’s General Data Protection Regulation (GDPR), however, personal data must be handled appropriately wherever it appears. For translation buyers, this means understanding not only what incidental personal data is, but also why it poses unique compliance challenges, and how experienced Language Service Companies (LSCs) help protect it throughout the translation process.

What Is Incidental Personal Data?

Incidental personal data is any information relating to an identifiable individual that appears within a document, even if the document was not created primarily to collect or process personal data. While the information may be secondary to the document's main purpose, it is still considered personal data under the GDPR if it can identify a living person, either directly or indirectly.

For example, a technical manual may include the name of the engineer who approved it, a marketing case study might reference a customer by name, or an internal report could contain employee contact details. Even seemingly minor information, such as email addresses, signatures and job titles, may fall within the scope of the GDPR when it relates to an identifiable individual.

For translation buyers, this distinction is important. Personal data doesn’t need to be the focus of a document for GDPR to apply. If it forms part of the content being translated, it should be handled with the same level of care as any other personal data.

Why Translation Presents a Unique GDPR Challenge

For many organisations, personal data is stored in structured systems such as customer databases, HR platforms and online forms. Translation projects are different. Rather than processing neatly organised records, LSCs often work with unstructured documents where personal data is woven into the content itself.

This makes incidental personal data much harder to identify before a translation project begins, particularly when the source language is unfamiliar to the project manager or the document contains thousands of words.

The challenge is compounded by the nature of modern translation. Documents may pass through secure file-sharing platforms, Computer-Assisted Translation (CAT) tools, reviewers and specialist linguists before a project is complete. Each stage requires appropriate safeguards to ensure personal data is handled securely and only by those who need access to it.

For translation buyers, GDPR compliance is therefore about more than simply choosing a supplier that claims to be compliant. It also means understanding how personal data is managed throughout the translation process, from the moment a file is received to the long-term handling of translation assets. One example is a translation memory, a repository of previously translated text used to improve consistency and efficiency across projects.

Managing Incidental Personal Data Throughout the Translation Workflow

Incidental personal data can appear at every stage of a project. While the GDPR doesn’t prohibit organisations from sharing documents for translation, it does require personal data to be handled appropriately throughout its lifecycle. Understanding where challenges can arise and how experienced LSCs address them can help buyers make more informed decisions.

Before Translation: Identifying Personal Data

Potential challenge

Translation projects often begin with documents that haven’t been reviewed specifically for personal data. Because incidental personal data is embedded within the content, it isn’t always obvious what personal data a file contains, particularly when it’s in another language.

Good practice

Professional LSCs should assume that business documents may contain personal data and build appropriate safeguards into their workflows from the outset. Secure file transfer, controlled access to project files and confidentiality agreements all help ensure information is protected before translation even begins.

During Translation: Keeping Data Secure

Potential challenge

As documents move between CAT tools, linguists and reviewers, organisations need to ensure personal data is kept secure. Where machine translation or AI-assisted tools are used, it’s also important to understand how data is processed and whether appropriate safeguards are in place.

Good practice

Experienced LSCs establish clear policies covering approved technologies, secure working environments and access controls. They should also be transparent about the technologies they use, including machine translation and AI-assisted tools, as well as the measures in place to safeguard sensitive information throughout the process.

After Translation: Managing Translation Assets Responsibly

Potential challenge

Even after a project has been delivered, incidental personal data may remain within translation assets such as translation memories. Without appropriate management, personal data could be retained longer than necessary or reused inappropriately.

Good practice

Professional LSCs implement clear policies governing how translation memories are created, stored and maintained. This may include client-specific translation memories, retention schedules, access controls and deletion procedures, helping organisations balance translation efficiency with responsible data management.

What to Look for in a GDPR-Conscious Language Service Company

While the workflow above highlights where incidental personal data can create challenges, the way an LSC manages those challenges ultimately depends on the policies and processes it has in place. However, managing incidental personal data isn’t about a single policy or piece of technology. It requires a combination of secure processes, experienced people and clear governance throughout the translation lifecycle.

While every translation project is different, some core practices demonstrate a strong approach to data protection. When evaluating an LSC, consider whether they can demonstrate the following:

• • Data minimisation – collecting, processing and retaining only the personal data necessary to complete the project.
  • Secure file handling – using secure methods to transfer and store files, rather than relying on unencrypted email or other insecure channels.
  • Controlled access – restricting access to project files so that only the people directly involved in the translation can view sensitive information.
  • Translation memory management – maintaining clear policies for how TMs are stored, retained and managed, including client-specific segmentation where appropriate.
  • Additional safeguards for sensitive content – offering measures such as pseudonymisation in translations where projects involve particularly sensitive personal data.
  • Clear contractual protections – ensuring translators and other external linguists work under appropriate confidentiality agreements and Data Processing Agreements (DPAs), where applicable.
  • Recognised information security standards – aligning internal processes with frameworks such as ISO 27001 to support consistent information security management.

These practices not only support GDPR compliance but also help organisations reduce risk while maintaining translation quality and efficiency. At Word Connection, secure handling of client data forms part of every translation workflow, combining experienced linguists with robust processes designed to protect confidential information throughout the project lifecycle.

Incidental personal data is often overlooked in translation projects, but that doesn’t mean it has to become a compliance headache. By understanding how personal data moves through the translation workflow (and by working with an LSC that has appropriate safeguards in place) organisations can translate sensitive content confidently while supporting their wider GDPR obligations.

As translation workflows become increasingly digital and AI-assisted technologies become more common, understanding how personal data is protected will become increasingly important. 

At Word Connection, secure, compliant translation is built into every stage of our workflow, helping organisations protect their information without compromising on quality or efficiency.