Michael Zidell has filed a lawsuit against Citibank in Manhattan federal court, alleging the bank ignored suspicious transaction alerts that led to him losing $20 million in a cryptocurrency scam. Zidell claims he was defrauded through 43 transfers, with nearly $4 million sent to Citibank's Guju Inc. account. The scam, which began in 2023, involved a fraudster posing as a businessman named Carolyn Parker, convincing Zidell to invest in NFTs via Facebook. The lawsuit accuses Citibank of failing to investigate these abnormal transactions, breaching its anti-money laundering obligations. Zidell discovered the fraud when the trading platform OpenrarityPro abruptly closed, making fund recovery impossible.