Greek privacy regulator fined OTE €200,000 over inaccurate do-not-call records

Summary

The Hellenic Data Protection Authority found that OTE deleted subscribers from its do-not-call register when they requested number portability but lacked a proper process to restore their entries when portability was cancelled. Because OTE's internal customer-service system and the register sent to advertisers diverged, affected subscribers received unsolicited marketing calls. The authority found GDPR accuracy and data-protection-by-design infringements affecting a large number of subscribers and imposed a €200,000 fine in Decision 31/2019. The authority's English notice does not state when the faulty processing began, so the decision date is used as the required event anchor rather than inventing an earlier date. Primary source: https://www.dpa.gr/en/enimerwtiko/press-releases/administrative-fines-imposed-telephone-service-provider