BIS Warns Crypto Earn Is Unsecured Lending, Flags “Shadow Banking” Exchange Model

The BIS warns that large crypto exchanges are evolving into “Multifunction Crypto-asset Intermediaries” (MCIs), bundling trading, custody, brokerage, and proprietary trading. BIS says these structures weaken traditional risk firewalls because they lack proper asset segregation, transparency, and reserve buffers—closer to “shadow banking.” BIS also argues that most crypto Earn or “high-yield” products are not true yield. When users deposit crypto for returns, platforms typically treat the assets as unsecured loans and rehypothecate them into riskier activities such as margin lending, leveraged proprietary trading, and liquidity provision. In insolvency, users can become unsecured creditors at the back of the repayment queue, with no deposit insurance or lender-of-last-resort support. To illustrate fragility, BIS cites the FTX collapse and Celsius Network failure. It also references a 24-hour forced-liquidation episode where total liquidations hit about $19B amid a sharp market value drop. The BIS report further highlights DeFi contagion risk, including the KelpDAO attack: exploited rsETH was used as collateral to borrow heavily from Aave, contributing to an estimated ~$292M shortfall. For traders, this is a counterparty and insolvency risk signal for crypto Earn yields. In stress, leverage and interconnected flows can accelerate drawdowns and liquidity gaps, especially when a few dominant platforms concentrate market depth.