Deterring Communist Chinese Aggression against Taiwan through Financial Sanctions Act of 2023 This bill requires sanctions and other actions if China's government makes any attempt to subject Taiwan to China's control, including by invading Taiwan's territory. If China's government makes such an attempt, the bill requires certain actions, including (1) imposing sanctions against Chinese nationals, citizens, and entities that participate in the attempt; (2) prohibiting the trading in the securities of Chinese entities on national securities exchanges; and (3) imposing sanctions on global financial communications services providers that continue to provide financial communications services to the Central Bank of China or any foreign financial institutions subject to sanctions under this bill.