Justin Sun, a prominent crypto entrepreneur and the largest investor in World Liberty Financial, has accused the company of secretly implementing a tool that allows it to freeze users' cryptocurrency holdings. In a series of posts on social media platform X, Sun claimed that World Liberty has embedded a 'backdoor blacklisting function' in its blockchain contracts, giving it the power to freeze and restrict token holders' assets without cause. Sun stated he was the 'first and single largest victim' of this alleged tool, citing an incident in September when his holdings were frozen. World Liberty Financial, co-founded by the Trump family, generated over $460 million in income in the first half of 2025. The company responded to Sun's allegations by stating they have evidence to support their case and are prepared to pursue legal action. The Securities and Exchange Commission (SEC) has not commented on the regulatory implications of such freezes, highlighting the ongoing uncertainty surrounding cryptocurrency regulations in the United States.