The largest investor in Donald Trump’s crypto venture has claimed that the firm “secretly” implemented a tool to unilaterally freeze his holdings of its cryptocurrency. He claimed the company could do the same to any other user.

In posts on social media platform X on Sunday, crypto entrepreneur Justin Sun said, without offering evidence, that World Liberty Financial had embedded what he described as a “backdoor blacklisting function” in the blockchain-based contracts used for the WLFI tokens.

The move, Sun wrote, gave World Liberty “unilateral power” to “freeze, restrict, and effectively confiscate the property rights” of any token holder, without cause and without recourse. Reuters was unable to establish if World…