Reports indicate that the United States and the United Kingdom are jointly investigating a cryptocurrency transfer surpassing $20 billion to a Russian cryptocurrency exchange. The transfer, which utilized Tether (USDT) and was processed through the Moscow-based exchange Garantex, is under scrutiny due to suspicions of sanctions evasion by Russia. Garantex has been targeted by sanctions for its alleged involvement in financial crimes and illicit transactions within Russia. This particular $20 billion transaction is noted as one of the largest violations of sanctions against Russia to date. Tether, a key player in the investigation, has taken steps to freeze assets linked to organizations on the US sanctions list, cooperating closely with law enforcement agencies in both countries to track and seize assets associated with the ongoing inquiry.