While Facebook has beefed up its privacy practices in recent years, Zuckerberg has not committed to providing the protections of the European General Data Protection regulations-widely seen as the strictest in the world-to users outside of Europe.
Facebook CEO Mark Zuckerberg will testify on Capitol Hill on April 11 before the powerful House Energy and Commerce Committee, to answer questions about how the company protects its users' data.
CNNMoney broke the news last week that Zuckerberg was coming close to securing a date to testify before Congress. Facebook has been under fire after the revelation that the data firm Cambridge Analytica was able to access information from about 50 million Facebook users without their knowledge, and lawmakers have been clamoring for him to testify.
The Facebook founder has also been invited to appear before the US Senate Judiciary Committee next Tuesday alongside the heads of Google and Twitter.
His participation is yet unconfirmed but Senator Dianne Feinstein told the San Francisco Chronicle Zuckerberg had agreed to attend that hearing.
On Tuesday, Facebook announced it had removed hundreds of accounts and pages associated with the Russia-based Internet Research Agency that included fake activist and political posts in the 2016 US election campaign.
Egan and Beringer said Facebook will go further in explaining how it gathers information from phones and other devices.
The social networking giant said it revoked the accounts of 70 Facebook and 65 Instagram accounts, and removed 138 Facebook pages controlled by the Russia-based Internet Research Agency (IRA).
The unit "has repeatedly used complex networks of inauthentic accounts to deceive and manipulate people who use Facebook, including before, during and after the 2016 U.S. presidential elections", said a statement Facebook chief security officer Alex Stamos. The company also faces continued scrutiny over its failure to prevent exploitation of its network by Russians using fake news and fake accounts.