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ARTICLE · 11 NOVEMBER 2025

Belgium's DPA Tightens Rules On Sharing Personal Data At Work

The Belgian Data Protection Authority recently ruled on a complaint after an employer shared a full court judgment with all its staff, revealing the personal data of employees and trade unions involved in the case.

BelgiumEmployment and HR

The Belgian Data Protection Authority recently ruled on a complaint after an employer shared a full court judgment with all its staff, revealing the personal data of employees and trade unions involved in the case. Below we outline what happened, the DPA's findings, and the key lessons for employers.

The complaint

In 2014, two trade unions and several employees initiated proceedings against the employer concerning the legality of a part of its remuneration system. The employer won on appeal and shared the full judgment internally with all its employees by e-mail. The majority of the employees were placed in blind-copy (Bcc), making it impossible to see who had received the e-mail. However, the judgment was neither anonymised nor pseudonymised, revealing the names and addresses of the employees involved in the case to all recipients. One of them was an employees' representative (also an employee of the company).

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