The US Treasury has imposed sanctions on Russian cryptocurrency exchanges ahead of a summit between President Donald Trump and Vladimir Putin, aiming to disrupt illicit activities in the crypto market. Approximately $27 million worth of USDT associated with illicit activity on Garantex, a prominent Russian-linked exchange, was frozen. The move comes as part of a larger effort to counter Russian cybercrime and ransomware operations, according to the U.S. Treasury’s Office of Foreign Assets Control (OFAC). Despite these sanctions, major cryptocurrencies like Bitcoin and Ethereum have largely remained unaffected. 27 million USDT were frozen, reflecting the severity with which the US is addressing illicit use of cryptocurrencies from Russia.