Sensitive personal data in the financial sector

When a company processes personal data, it must in certain cases give special consideration to a distinct category of data: those afforded specific protection under the General Data Protection Regulation (GDPR). In the financial sector—where customer due diligence, security and compliance are fundamental—mishandling such data can cause significant legal and reputational harm.

Special categories of personal data are not merely a statutory label; they are a concrete risk factor in day-to-day operations. They are subject to dedicated protective rules under the GDPR, which raises the bar for lawful basis, technical safeguards and internal documentation well beyond that applicable to ordinary personal data.

What counts as sensitive personal data?

Under Article 9 GDPR, sensitive personal data includes information revealing:

• racial or ethnic origin
• political opinions
• religious or philosophical beliefs
• trade union membership
• processing of genetic data
• biometric data for the purpose of uniquely identifying a natural person
• health data
• data about a natural person’s sex life or sexual orientation

Where financial firms encounter special category personal data

Financial institutions may encounter such data during customer identification and background checks, in transactions to healthcare providers, trade unions or religious organisations, or whenever documents incidentally contain any of the above categories. Even inadvertent misuse can amount to a serious intrusion into privacy.

Lawful basis and necessity: applying Article 9 GDPR

An overarching awareness is not enough. Firms must ensure a valid lawful basis (consent or a specific exception under Article 9 GDPR) and that processing is strictly necessary for the purpose. Where relevant, reference frameworks such as “special category personal data”, “health data GDPR” and “genetic data GDPR” should be assessed and documented with precision.

Technical and organisational measures: beyond IT controls

Technical controls alone are insufficient. Robust organisational safeguards are also required—such as role-based access, data minimisation and structured incident handling. In practice this means implementing policies aligned with data minimization GDPR, and ensuring tested playbooks for incident management GDPR and incident response GDPR. Failures may trigger regulatory oversight by the Data Protection Authority and potential claims for damages.

At Morling Consulting, our GDPR lawyers support financial institutions in achieving compliant handling of sensitive personal data—from assessing lawful bases to embedding both technical and organisational compliance. We also help design internal policies, incident response routines and risk assessments that meet legal requirements and the sector’s specific operational realities, including considerations around special category personal data and health data GDPR.

Our advisory services include targeted controls for genetic data GDPR, explicit scoping under Article 9 GDPR, and proportionate governance that demonstrably satisfies data minimization GDPR while maintaining operational resilience through incident management GDPR and incident response GDPR.