Russian-Dutch e-commerce company Yandex sustained a data breach in which 4,887 customer accounts were compromised. The employee involved was one of three system administrators who had access rights to provide technical support for the service. An internal investigation revealed the suspect employee “had been providing unauthorized access to users mailboxes for personal gain” Cybersecurity Insiders: 68% of organizations report being vulnerable to insider threats, with over 50% noting that privileged IT users posed the biggest insider security risk.”]
Source: https://www.devicesecurity.io/yandex-insider-caused-breach-affecting-5000-customers-a-15990