The US SEC has filed a lawsuit against cryptocurrency exchange Binance, Binance.US, and CEO Changpeng “CZ” Zhao, accusing them of violating securities laws and committing fraud. The SEC now seeks court permission to serve legal papers unconventionally due to Binance’s secretive nature and lack of an official headquarters. This comes as Binance.US suspends USD deposits and withdraws from bank partnerships, prompting an emergency action for a temporary restraining order by the SEC.