In a post on X, one analyst now claims traditional fiat-backed stablecoins like USDT and USDC should prepare for a “major” attack due to the increasing popularity of Ethena’s USDe. The warning follows Ethena and USDe’s integration with Bybit, a crypto exchange allowing perpetual trading. Ethena Partners With ByBit USDe is not fiat-backed like other popular stablecoins.