According to blockchain intelligence firms TRM Labs and Chainalysis, Grinex is a rebranded version of the Garantex cryptocurrency exchange that was shut down and sanctioned in March 2025. Two of its operators were subsequently criminally charged in the US.
Russian Grinex exchange halts trading after $13 million+ exploit
The Russian cryptocurrency exchange Grinex has halted trading after disclosing a hack of more than 1 billion rubles (more than $13 million). The exchange has claimed on Telegram that the hack was perpetrated by "foreign special services" they allege were trying to harm Russian financial independence.