Robinhood

"[...] customers received false or misleading information from Robinhood on a variety of issues, including how much money customers had in their accounts, whether they could place trades on margin and more."

An exchange between Congresswoman Cindy Axne of Iowa and CEO of Robinhood Vlad Tenev "opened a window into a sick business model on Wall Street that is pumping out billionaires like Citadel’s Ken Griffin while seducing young people with the gamification of trading."