KEY POINTS
  • The New York Times reported that device manufacturers were granted improper access to Facebook data.
  • The letter from senators John Thune and Bill Nelson asks if Facebook audited those partnerships.
  • Facebook reportedly has not answered hundreds of written questions submitted from members of Congress.
Mark Zuckerberg testifies before the House Energy and Commerce Committee in the Rayburn House Office Building on Capitol Hill April 11, 2018.

The U.S. Senate Commerce Committee demanded that Facebook's chief executive officer respond to a report that user data was shared with at least 60 device manufacturers, weeks after the social media company said it would change its practices after a political firm got access to data from millions of users.

Senators John Thune, the Republican chairman, and Bill Nelson, the ranking Democrat, on Tuesday wrote to Facebook CEO Mark Zuckerberg after the New York Times reported that manufacturers were able to access user friends data even if the friends denied permission to share the information with third parties.