Quote:Yandex – one of Europe’s largest internet companies – is warning of a data breach that compromised 4,887 email accounts. The breach stems from an insider threat.
 
Yandex is the most-used search engine in Russia – and the fifth most-popular search engine worldwide. Beyond its search engine, Yandex’s internet product lineup includes email services, online advertising, app analytics and more.
 
The company found that a Yandex employee had been providing unauthorized access to users’ mailboxes “for personal gain.” This employee was one of three system administrators, who had the access privileges to provide technical support for mailboxes, said Yandex.

“A thorough internal investigation of the incident is under way, and Yandex will be making changes to administrative access procedures,” said Yandex’s Friday security advisory. “This will help minimize the potential for individuals to compromise the security of user data in future. The company has also contacted law enforcement.”