Hidden Road, a prime brokerage firm backed by Citadel Securities, has ceased offering client access to Bybit, the third-largest cryptocurrency exchange. This decision has led to disputes between the two firms over Bybit's know-your-customer (KYC) and anti-money laundering (AML) protocols. Hidden Road informed clients of this change a few weeks ago, as reported by Bloomberg. The exact nature of the disagreement over Bybit's compliance requirements remains unclear. This move highlights ongoing regulatory and compliance challenges within the cryptocurrency industry.