Cyberattack at Armentières hospital: stolen files concern around 300,000 patients. Data, "made accessible" since Sunday by the hackers, is “essentially lists, containing the contact details, the date of arrival and the care sector of the patients concerned” The National Commission for Information Technology and Liberties (Cnil) told AFP that it had opened an investigation after “a notification of a data breach” Several French hospitals have been the target of cyberattacks in recent years.