MLex has reported that the Greek Data Protection Authority (DPA) has fined Alphabank, Eurobank, National Bank and Piraeus Bank €20,000 each, for violating the EU’s General Data Protection Regulation, Regulation (EU) 2016/679 (EU GDPR). The four banks were found to have retained the details of Mastercard users’ last ten transactions on each card’s chip, without providing specific information to the data subjects about such data processing, the regulator said. The DPA said the banks had breached the principle of information obligation, lawfulness, fairness and transparency.