According to ChainCatcher, on November 8, a Binance user reported that five unauthorized token swaps occurred in their account within 97 seconds. The transactions included 2.331 BTC exchanged for USDC and approximately 260,000 USDC in two-way EUR swaps totaling a reduction of about 10,044 USDC, each round incurring near 2% slippage.
The user stated that Binance customer support confirmed the trades originated from their registered iPhone but failed to provide sufficient proof of authorization or explain the price discrepancies. The user publicly raised three questions: who initiated the trades, why the slippage was significant, and who benefited economically. They filed complaint number CC10319344 and requested intervention from Binance executives and security teams.