A Canadian woman, Yan Li Xu, lost $480,000 in Ethereum after ignoring four scam warnings from the cryptocurrency exchange NDAX. The British Columbia Supreme Court ruled that NDAX was not liable for the loss, as the exchange had fulfilled its duty by repeatedly alerting Xu about potential fraud. Despite these warnings, including a recorded call from NDAX staff, Xu transferred C$671,000 worth of Ethereum to an external wallet linked to a high-return investment scheme. Subsequent blockchain analysis confirmed the funds were sent to a scam wallet.