VietnaMobile.com.vn

Vietnamobile a major mobile network operator in Vietnam suffered a significant data exposure incident involving a misconfigured database. The leak exposed millions of subscriber records due to an unsecured Elasticsearch server that was accessible to the public without authentication. The dataset contained sensitive customer information including personal identifiers and internal system logs. Security researchers discovered the open server which allowed anyone with the IP address to view and download the entire customer database. This incident highlights the critical risks associated with cloud misconfigurations in the telecommunications sector.