Ransomware Attack Halts Public Postal Services in Greece

April 29, 2023


Ransomware hit ELTA encrypting its systems and halting operations in a major service disruption. "Threat actors exploited an unpatched vulnerability to drop malware that allowed access to one workstation using an HTTPS reverse shell." To stop the spread, they shut down all data centers. Online parcel tracking and labelling is also down for customers. Full service was restored by April 6th. The attack affected mail system, financial transactions and bill payments.

Incident Date

March 20, 2022



Estimated Cost

Disrupted postal services for 17 days, nationally

Type of Malware

No Malware identified

Threat Source

No threat source identified