State attorneys general for Massachusetts and New York sent a letter to Facebook Inc on 20 March demanding information about personal data that ended up in the hands of analytics firm Cambridge Analytica, a person familiar with the matter said.
The letter, part of a joint investigation by the two states, requests documents about violations of Facebook’s terms of service, as well as copies of all communications between Facebook and Cambridge Analytica and a host of other materials, the person said, speaking on condition of anonymity.
The relevations have left doubts regarding privacy of personal data on social media platforms such as Facebook, Twitter, and Snapchat. On 20 March, the Wall Street saw a slump in the shares of these social media platforms where Facbook's has lost $60 billion of its stock market value.
With inputs from Reuters