The adoption of GDPR has given EU residents more control over the personal information that organisations collect about them. So, whether you’re at the doctor or visiting a website, you’re likely more aware of when your data is being collected and how it’s being used. 

Today, the conversation around data privacy has expanded to include EU data sovereignty — the principle that data collected within Europe stays under European laws and control. The idea here is that data collected from European residents, organisations, or governments is stored within Europe, governed by European regulations, and not subject to foreign laws or legal reach. All this is meant to ensure and protect data privacy, while enhancing cybersecurity and strategic independence. 

In today's interconnected digital economy, where data flows freely across borders and cloud services are often hosted on non-European infrastructure, data sovereignty has become a critical concern. In this article, we’ll explore the mechanisms and importance of EU data sovereignty — particularly for financial service companies. We’ll also discuss how, as a KYC and identity verification provider, Fourthline has made it a core business principle to keep European data in Europe. 

Key regulations driving data sovereignty requirements 

EU data sovereignty is more than a philosophical concept. It’s a principle that’s enforced through a comprehensive legal framework that stipulates how organisations can collect, share, process, and transfer data. These regulations operate in concert to ensure that data remains within the EU jurisdiction and under its safeguards. Let’s take a look at these regulations individually and what compliance looks like. 

GDPR (General Data Protection Regulation) 

The core principle of GDPR is that people residing in the EU have the right to access, correct, and erase personal information that organisations collect about them. There are specific requirements for lawful processing, data minimisation (only collecting data that’s truly necessary), and the purposes that the data can be used for. Most importantly for data sovereignty, GDPR places significant restrictions on when an organisation can lawfully transfer personal data outside the European Economic Area. Organisations can only transfer data to third countries that the European Commission has deemed to provide "adequate" protection — or, they must implement additional safeguards. 

Learn more about GDPR here.  

DORA (Digital Operational Resilience Act)  

Effective from January 17, 2025, the Digital Operational Resilience Act is a regulation specific to the financial sector. In short, it strengthens businesses’ ability to withstand disruptions and cyber threats to ICT (Information and Communication Technology) infrastructure. DORA requirements include ICT risk management, incident reporting, and operational resilience testing. DORA also states that financial institutions must maintain detailed registers of all ICT dependencies, assess concentration risks, and ensure contractual rights to access and audit third-party systems. And while it doesn’t mandate that companies store their data within the EU, DORA creates strong incentives for companies to work with EU-based technology providers who are set up to manage these strict requirements. 

eIDAS (electronic Identification, Authentication and Trust Services) 

eIDAS is a regulation providing the legal framework for cross-border electronic identification and trust services across the EU. It creates a standard for identity verification across Europe, ensuring mutual recognition of electronic identification procedures. In practice, this means that citizens can use their IDs to access services across the EU. For financial institutions, eIDAS standardises how electronic verification can be used for KYC (Know Your Customer) processes, and establishes legal validity for QES (Qualified Electronic Signatures) across borders.  When financial institutions use eIDAS-compliant providers, identity data remains under European legal oversight throughout the verification process. 

Learn more about eIDAS here.  

Why data sovereignty is critical for financial services 

Financial service providers in the EU handle massive amounts of data. They also face mandatory oversight, strict licensing requirements, and substantial penalties for compliance failures. And that’s not to mention the importance of protecting customers and themselves against legal risk and surveillance from foreign jurisdictions. All of this makes the question of EU data sovereignty not just a best practice, but a business imperative. 

Here are three reasons why data sovereignty matters for financial companies: 

• Regulatory compliance: Under EU law, financial institutions must meet KYC/AML obligations and protect sensitive data. EU data sovereignty simplifies compliance by eliminating complex cross-border data transfer requirements and demonstrating regulatory commitment.  

• Trust and reputation: Companies that keep customer data in the EU demonstrate commitment to privacy and security, helping to build trust with customers. 

• Operational control and security: Prioritising EU data sovereignty means less reliance on non-EU providers, reducing vulnerability to foreign laws or geopolitical tensions.  

Data sovereignty challenges by industry segment   

Different financial service segments face unique data sovereignty challenges based on their regulatory environment, customer base, and operational models. Here, we’ll look at these challenges by sector.  

Traditional and digital banks 

Traditional banks often operate on legacy systems built before modern data processing laws existed. Digital banks, while designed for today's regulations, face pressure to scale quickly using global infrastructure. Both face a trade-off: building their own EU infrastructure requires significant resources, while using non-EU providers means navigating complex transfers and may complicate compliance. 

Payment institutions and fintechs 

Fintechs and payment institutions are constantly balancing compliance with the need for speed when it comes to growth. Like banks, both must comply with GDPR's cross-border data transfer requirements and DORA's third-party risk management obligations. Using non-EU providers requires implementing Standard Contractual Clauses and conducting additional compliance assessments.  

Cryptocurrency platforms 

Crypto asset service providers must comply with MiCA (Markets in Crypto-Assets Regulation) a comprehensive regulatory framework for crypto-assets, the Travel Rule, which requires secure identity data transfers, and stringent AML obligations. Like other financial services, they must navigate GDPR's cross-border data transfer requirements when using non-EU providers. 

Across all these segments, the challenge is the same: meeting EU regulatory expectations without sacrificing operational flexibility or compromising growth. EU-based technology providers address this challenge by delivering regulatory-compliant infrastructure as a service — allowing banks, fintechs, and crypto platforms to meet data protection standards while focusing on their businesses. 

EU data sovereignty with Fourthline 

At Fourthline, EU data sovereignty isn't just a compliance requirement — it's key to our business. As an identity verification and KYC provider, we process sensitive personal data on behalf of financial institutions across Europe. We offer payment services under our license by the De Nederlandse Bank (DNB)Dutch Central Bank, operate under Dutch regulatory oversight, and we've built our entire platform around keeping European data secure. Here’s how we do it: 

Infrastructure and service 

Fourthline provides identity verification, biometric authentication, and AML screening services to banks, fintechs, payment institutions, and crypto platforms. Personal data processing — from document verification to fraud detection — takes place within the European Economic Area. We maintain strict compliance with data localisation requirements for regulated activities. This eliminates the complexity of cross-border data transfers, giving our business partners straightforward compliance and simplified vendor risk assessments. 

Regulatory compliance  

Fourthline operates under comprehensive European regulatory oversight. GDPR compliance is built into all our contracts by default. Our electronic identification services leverage the eIDAS framework, enabling secure cross-border identity verification within EU legal standards. Our processing activities are fully aligned with European data protection legislation. 

Data processing 

When financial institutions use Fourthline's identity verification services, we process their customers' personal data for specific purposes including: 

• Identity verification and customer due diligence under EU AML regulations 

• Fraud prevention and detection to protect financial services 

• Biometric authentication and liveness detection 

• Compliance with regulatory reporting  

• Service improvement and development 

Processing activities follow GDPR principles including data minimisation, purpose limitation, and transparent data handling. When data sharing is necessary, we ensure appropriate safeguards are in place in accordance with GDPR. 

Flexible partnership models 

When you use Fourthline's services, we process your customers' identity data within our EU infrastructure. Depending on your service arrangement, we can act as either a data controller or a data processor (as governed by Data Processing Agreements that define responsibilities, data flows, and safeguards). Both arrangements maintain EU data residency. 

Why Fourthline’s approach matters 

For financial institutions selecting an identity verification provider, Fourthline's EU-first approach offers tangible benefits:

• Simplified vendor due diligence: No complex cross-border data transfer assessments required when evaluating us as a processor 

• Reduced regulatory scrutiny: EU-based processing of your customers' data aligns with supervisory expectations 

• Faster compliance approvals: Straightforward data residency eliminates a major friction point in procurement 

• Enhanced trust: Your customers' sensitive identity data is protected under European data protection standards 

• Future-ready compliance: Infrastructure aligned with evolving EU digital sovereignty requirements 

• By choosing Fourthline to handle your identity verification, you're selecting a provider that processes customer data primarily within the EU, eliminating a significant source of third-party risk while meeting the expectations of regulators, customers, and business partners.