Russian internet and search company Yandex discloses a data breach, a system administrator was selling access to thousands of user mailboxes for personal gain. The employee was one of three system administrators with the necessary access rights to provide technical support for the service. As a result of his actions, 4,887 mailboxes were compromised. The company is not aware of any access to user payment data. The security incident was discovered during a routine screening by its internal security team, an internal investigation is still ongoing.”]
Source: https://securityaffairs.co/wordpress/114524/data-breach/yandex-data-breach.html