All data is encrypted. The Classe 300EOS with Netatmo, like all other devices produced by Legrand Netatmo BTicino, is designed in accordance with the guidelines of the international security standards ISO / IEC 27000 and in compliance with the European Regulation for the Protection of Personal Data (GDPR). Controls and procedures are implemented in order to protect all data generated, processed and transmitted by the device against cyber threats and risks. The protection of data confidentiality, integrity and availability are the three fundamental principles on which Legrand Netatmo BTicino implements major control measures.