GDPR and File Transfer: What the Law Requires in 2026
Since its enforcement in May 2018, the General Data Protection Regulation (GDPR) has fundamentally reshaped how European organisations collect, process, and transfer personal data. Eight years on, the numbers speak for themselves: regulators have issued more than 2,245 fines totalling over EUR 7.1 billion. In 2025 alone, penalties reached EUR 1.2 billion, confirming an upward trend that shows no sign of slowing.
File transfer sits at the heart of this challenge. Every day, millions of documents containing personal data flow between colleagues, contractors, and clients. Yet the majority of tools used for these transfers fail to meet GDPR requirements. Understanding these obligations is no longer optional; it is a legal and financial imperative.
The fines that shaped GDPR enforcement
Among the most significant penalties, the EUR 1.2 billion fine imposed on Meta in 2023 remains a landmark case. The Irish Data Protection Commission sanctioned Meta for transferring European users' data to the United States without adequate safeguards. This decision, directly linked to the Schrems II ruling, demonstrated that even tech giants are not immune.
In 2025, TikTok received a EUR 530 million fine for similar failings related to data transfers to China. The message from regulators is unambiguous: international transfers of personal data without an appropriate legal framework represent the highest risk category.
International transfers of personal data without appropriate safeguards constitute the most heavily sanctioned category of GDPR violations across Europe.
What the GDPR concretely requires for file transfers
The GDPR imposes a set of technical and organisational requirements that every file transfer tool must satisfy. These are not mere recommendations; they carry the full weight of legal liability for the data controller.
- End-to-end encryption (E2E): Article 32 of the GDPR mandates the implementation of appropriate technical measures, including encryption. End-to-end encryption ensures that only the sender and recipient can access file contents. Unlike simple transport encryption (TLS), E2E prevents even the service provider from accessing your data.
- Strict access controls: every transferred file must be accessible only to authorised individuals. This means authentication mechanisms, single-use or password-protected links, and the ability to revoke access at any time.
- Audit trails: the GDPR requires organisations to demonstrate compliance. This involves logging access events, downloads, and deletions, enabling full traceability of each shared file's lifecycle.
- Data minimisation: a core GDPR principle, minimisation requires that only strictly necessary data be collected and transferred. For file transfers, this means automatic deletion of files after a defined period.
The lasting impact of Schrems II on your transfers
The Schrems II ruling, delivered by the Court of Justice of the European Union in July 2020, invalidated the Privacy Shield framework that governed data transfers to the United States. Its consequences remain highly relevant in 2026, despite the adoption of the EU-US Data Privacy Framework in 2023.
In practice, using a file transfer service with servers located in the United States, or operated by a company subject to US law (CLOUD Act, FISA Section 702), exposes your organisation to significant legal risk. Data protection authorities have consistently found that US surveillance laws are incompatible with the level of protection required by the GDPR.
This legal reality applies even when a provider claims to host data in Europe. If the parent company is American, US authorities can compel access to that data under the CLOUD Act, regardless of where the servers are physically located.
The most common file transfer mistakes
Many organisations continue to rely on transfer methods that leave them exposed to enforcement action:
- Sending files via unencrypted email: attachments travel in plaintext across mail servers with no guarantee of confidentiality.
- Using consumer-grade services: free file transfer platforms typically do not provide end-to-end encryption. The provider can technically access your files.
- No retention policy: files containing personal data remain accessible indefinitely, violating the storage limitation principle.
- Relying on services hosted outside the EU: without Standard Contractual Clauses (SCCs) or a Transfer Impact Assessment, these practices constitute a direct GDPR violation.
How to bring your file transfers into compliance
Achieving compliance for your file transfers rests on three pillars. First, selecting a technically compliant tool that implements end-to-end encryption, zero-knowledge architecture (the provider has no access to your data), and automatic deletion. Second, hosting data within the European Union, ideally in France, through a provider not subject to extraterritorial legislation. Third, documenting your practices: records of processing activities, Data Protection Impact Assessments (DPIAs), and internal procedures.
When it comes to GDPR, compliance is not a fixed state but a continuous process. Every file transfer containing personal data must be assessed against the risks to the individuals concerned.
ZeroTrustTransfer: GDPR compliance by design
ZeroTrustTransfer was built from the ground up to meet GDPR requirements. Every file is protected with AES-256 end-to-end encryption: neither Kioroeya nor any third party can access the contents of your transfers. The zero-knowledge architecture ensures that encryption keys remain exclusively in the hands of the sender and recipient.
Hosted entirely in France, ZeroTrustTransfer eliminates the risks associated with international data transfers. Automatic file deletion after expiry ensures compliance with the data minimisation principle, while audit trails allow you to document every operation.
When GDPR fines are measured in billions of euros, investing in a compliant file transfer tool is no longer a luxury; it is the most cost-effective decision your organisation can make. Discover ZeroTrustTransfer and secure your file exchanges today.