The Personal Data Protection Board (the “Board”), through its Principle Decision dated 29 April 2026 and numbered 2026/921, has made significant assessments regarding the use of biometric identification systems by employers for monitoring employee attendance and working hours. The Principle Decision was published in the Official Gazette dated 2 June 2026 and numbered 33268 and has entered into force, setting forth significant findings and implementation principles regarding the legal basis, the requirement of explicit consent, and the principle of proportionality with respect to fingerprint recognition, facial recognition, iris scanning, and similar biometric systems widely used in workplaces.