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.

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.

DOGE officials have been active at USAID, Veterans Affairs, Treasury and elsewhere, but little is publicly known about their work.