kajit is a former REvil and DarkSide operator & the admin of the Ransomware Marketplace forum (RAMP). Thus, making kajit a Russia-based or Russian-speaking private ransomware-as-a-service (RaaS) operation member / leader.
He was already hacking since late 80s in USSR.
He ransomed an Israeli ISP in the 90s.
https://papers.vx-underground.org/papers/VXUG/Exclusive/Interviews/Inter...