After going for more than a year without using one of its most powerful weapons, a John Doe summons, the Internal Revenue Service (IRS) has reverted to the use of this tool in its much-publicized efforts to investigate, find, and prosecute those who fail to report virtual currency transactions and those who facilitate not reporting. This latest filing demonstrates that Operation Hidden Treasure, announced in May 2021 to identify tax evasion among cryptocurrency users, is still going strong. Recent announcements also have made clear that the IRS, along with the Department of Justice (DOJ), is working with other agencies such as the Joint Chiefs of Global Tax Enforcement and other state and federal agencies to curb the abuse of laws using cryptocurrency transactions.