Francis Hogan, a former employee of Facebook, says social networking sites and phone applications are harmful to children and undermine democracy.
She was testifying before a US Senate subcommittee.
A U.S. Senate business subcommittee has questioned former employee Francis Hogan on Facebook’s problems with young users and other issues.
Giving oral testimony to the committee, Hogan added that although its leadership knew how to make Facebook and Instagram more secure social networks, it was not taking the necessary steps to do so, considering its enormous profits before the public.
She says the US Congress needs to intervene to resolve the issue.
However, Facebook founder Mark Zuckerberg says that recent media coverage has created a false image of his company.