The FBI has arrested the son of a custody firm CEO in connection with a $46 million cryptocurrency theft from US Marshals Service wallets. The alleged theft occurred on the island of Saint Martin, highlighting ongoing security challenges in the crypto space. In other news, the SEC has concluded its three-year legal battle with Justin Sun, reaching a $10 million settlement and dropping charges of fraud and securities violations against Tron and BitTorrent Foundation. Meanwhile, the IRS has proposed a shift to mandatory electronic delivery of tax forms for crypto exchange users, eliminating the need for paper copies of form 1099-DA.