Mcstaging.wom.co

A significant data exposure occurred involving a staging server belonging to WOM Chile, a major telecommunications provider. The incident originated from an unsecured Elasticsearch instance on the mcstaging.wom.co subdomain. The exposure included sensitive internal configurations, customer metadata, and technical logs. Security researchers discovered the open database which allowed unauthorized access to millions of records without authentication. The breach highlights risks associated with improperly secured development and staging environments that mirror production data.