Exposing Bulgaria’s Kyulev Data Leak Hacker | WhoisXML API

Threat Reports

Exposing Bulgaria’s Kyulev Data Leak Hacker

A Bulgarian data leaker managed to access and steal the sensitive data of several high-profile targets. To make matters worse, the hacker had been seen offering access to the compromised database.

To assist the cybersecurity community and law enforcement sector, WhoisXML API threat researcher Dancho Danchev analyzed the threat actor’s digital footprints.

The artifacts consist of domain names, personally identifiable email addresses, and IP addresses—any of which can be good starting points for deeper investigation and more extensive IoC expansion.

Get access to our findings and uncover more on your own. Download the report now.

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