Elon Musk's control of a federal payment system is raising concerns about funding for programs like Social Security and the ...

The U.S. Treasury said on Tuesday that Elon Musk's government-efficiency team has been granted "read-only access" to its ...

Musk's team of young tech engineers accessed the U.S. government's near-$6 trillion payment system, according to several reputable news outlets.

In a letter to the Treasury secretary, the Democratic senator warned against meddling with a system that processes trillions ...