According to online reports, according to "chain detective" ZachXBT, a Coinbase user was attacked by social engineering last month. It is reported that 110 cbBTC, worth US$11.5 million, have been lost. The stolen funds were immediately exchanged, bridged and cleaned through multiple exchanges, and merged with the funds of other Coinbase victims on Ethereum. ZachXBT added that social engineering scams on Coinbase cost users more than $150 million a year due to data breaches, email/phone spoofing, error detection, etc.