If the wrong person gained access to personal financial information held by the U.S. Treasury, it would constitute the biggest data breach in history.

The new Department of Government Efficiency now has access to a federal system responsible for $6 trillion in annual payments.

Led by Musk and a group of young engineers, DOGE is migrating around the government in search of cuts with an intensity that has demoralized federal workers and become a defining early mark of Donald Trump’s second term. Democrats are citing DOGE as they shift from early divisions over how to handle Trump to more full-throated resistance.