Facebook failed to closely monitor device makers after granting them access to the personal data of hundreds of millions of people, according to a previously unreported disclosure to Congress last month.
Facebook’s loose oversight of the partnerships was detected by the company’s government-approved privacy monitor in 2013. But it was never revealed to Facebook users, most of whom had not explicitly given the company permission to share their information.
Full article: Facebook Failed to Police How Its Partners Handled User Data – The New York Times