Tether, which mints the world’s most widely used crypto token, is likely one of the most valuable private companies on earth, with an estimated value of $200 billion, exceeding the total share value of McDonald’s.

The company’s token, known as USDT, is a stablecoin pegged to the U.S. dollar that has become the backbone of a parallel banking system pervading parts of the world. The token has also become a key tool for money launderers for industrial-scale scam centers, which operate out of grim office complexes across Southeast Asia. Tether’s assistance in law enforcement investigations has become highly sought-after by agencies around the world struggling to address surging crypto crime.

Because of Tether’s…