According to an email obtained by Bloomberg News on Thursday, crypto prime broker Hidden Road Partners urged clients to sell all balances and positions on the embattled virtual currency exchange FTX.com and convert them to US dollars. Hidden Road, which recently completed a $50 million funding round with Citadel Securities and FTX Ventures, told clients in a message Wednesday that they had until 7:30 p.m. New York time to liquidate their holdings at FTX.com. The decision demonstrates how the turmoil at FTX is spreading to a broader group of digital asset firms, while also emphasising the crisscrossing ties between many of the crypto world’s platforms.