A federal judge early Saturday temporarily restricted access by Elon Musk’s government efficiency program to the Treasury Department’s payment and data systems, saying there was a risk of “irreparable harm.”

The Trump administration’s new policy of allowing political appointees and “special government employees” access to these systems, which contain highly sensitive information such as bank details, heightens the risk of leaks and of the systems becoming more vulnerable than before to hacking, U.S. District Judge Paul A. Engelmayer said in an emergency order.

Judge Engelmayer ordered any such official who was granted access to the systems since Jan. 20 to “destroy any and all copies of material downloaded from the Treasury Department’s records and systems.” He also restricted the government from granting access to these categories of officials.

The defendants — President Trump and Treasury Secretary Scott Bessent — should show cause on Feb. 14 before Judge Jeannette A. Vargas, who is handling the case on a permanent basis, Judge Engelmayer said.