Sanctioned crypto exchange Grinex said it has suspended trading after losing more than 1 billion Russian rubles ($13.7 million) to an attack bearing signs of involvement by foreign intelligence agencies.

The exchange, which is registered in Kyrgyzstan but has been linked to Russia’s crypto ecosystem and alleged sanctions evasion, said on Thursday that the funds were taken from 54 addresses and that the digital footprint and nature of the attack indicate an “unprecedented level of reso