A former Facebook employee has told lawmakers in the United States that the company's websites and programs are "" harmful to children, causing divisions and undermining our democracy. "
Frances Haugen, a 37-year-old former product manager at Facebook, turned out to be a cover-up, which has been widely criticized in the US congressional hearing.
Facebook has been plagued by scrutiny and an increase in calls for control of the network.
What did Facebook say?
Facebook founder Mark Zuckerberg has responded, saying, the latest information provided a "false picture" about the company.
In his letter to staff, he said many of the allegations were "" meaningless "and described their efforts in combating harmful content, transparency, and the design of a" company-led research program to address these issues ".
"We care deeply about issues such as safety, quality of life, and mental health," Mr. Zuckerberg said in a letter posted on his Facebook page.
"It is difficult to hear information that does not represent our work and our intentions."
Facebook is the most popular social network in the world. The company says it has 2.7 billion users visiting the same page each time.
Hundreds of millions of people also use other social media platforms, including WhatsApp and Instagram.
But it has been criticized for everything from failing to protect consumer privacy to not making adequate efforts to prevent the spread of misinformation.