Source
https://www.databreaches.net/hacker-attack-on-hellenic-defense-systems-%25ce%25b5%25ce%25bb%25ce%25bb%25ce%25b7%25ce%25bd%25ce%25b9%25ce%25ba%25ce%25ac-%25ce%25b1%25ce%25bc%25cf%2585%25ce%25bd%25cf%2584%25ce%25b9%25ce%25ba%25ce%25ac-%25cf%2583%25cf%2585%25cf%2583%25cf%2584%25ce%25ae%25ce%25bc%25ce%25b1%25cf%2584%25ce%25b1-eas/
(translation): The tone-beginning was noticed a few days ago and according to a report in the newspaper “Kathimerini”, the Ministry of National demurrer and the police have been involved in the investigation into the incident, while the EYP is monitoring the developments. Initially there was occupy about the possibility that the companion fell victim to cyber espionage from a foreign country. Read more on LiFO.gr. This appears to live reported as a ransomware onset and it is thought that the attackers did not acquire to the production component of the system where more sensitive data would be. The type of malware was not named in this report. h/t, @Chum1ng0