A federal judge early Saturday blocked Elon Musk’s Department of Government Efficiency from accessing Treasury Department records that contain sensitive personal data such as Social Security and bank account numbers for millions of Americans.

Elon Musk’s Department of Government Efficiency access to the Treasury’s payment system poses an “unprecedented insider threat risk” and should be suspended immediately, according to an intelligence report prepared for the department by a contractor.

Tom Krause, a Silicon Valley executive with ties to DOGE, will become the financial assistant secretary of the Treasury Department, the people said. He replaces David A. Lebryk, who resigned after clashing with Krause over demands to stop payments on foreign aid - a measure Lebryk resisted as illegal.