The incident happened in 2015. Fraudsters acted through the company’s employees, passing them documents infected with viruses under the guise of third-party communication on work devices. As a result of the hack, 19,000 BTC were stolen, which at that time was $5,000,000. Since then, the company has turned its warehouses into an impenetrable fortress, and the work of employees is controlled in many ways. The staff is reduced as much as possible and is under constant control.