Facebook prohibits fraud. But in dozens of Facebook groups, users are buying and renting Uber driver accounts under other people’s identities.

YouTube says it delivers ‘responsible’ video recommendations. But its algorithms steered accounts for young gamers toward content on guns, school shootings, and a serial killer.

Millions of Americans are inadvertently sending their internet traffic to Chinese companies—including several tied to the People’s Liberation Army.

Meta says it prohibits ads that sell prescription and recreational drugs. But it’s approving drug dealer ads targeting users in multiple countries.