Star Xu has reignited allegations against Binance CEO Changpeng Zhao (CZ), accusing him of forging signatures in contracts dating back to May 2015. Xu, who initially made these claims publicly in 2015, has posted new evidence on social media platform X to support his accusations. CZ has consistently denied these allegations, maintaining his stance in his recent book where he refutes Xu's claims and describes the significant impact they had on his professional reputation.