Facebook sues app maker, says it made millions misusing Facebook user data

Facebook has sued a data analytics company that operated apps on the Facebook platform for nearly a decade, saying the company misused Facebook data to sell advertising and marketing services.

Facebook's lawsuit seeks a court order requiring the company to delete Facebook user data and suggests that Rankwave may have sold the user data to other unidentified entities. Rankwave refused to tell Facebook which entities it sold data to and refused to "[p]rovide a full accounting of Facebook user data in its possession," Facebook says.