The United States Justice Department is launching a broad-based antitrust review in major technology firms, such as criticism of the growing reach and power of companies.
The investigation will focus on growing arguments that companies are unlawfully stifling competition.
The Department estimate will consider the widespread concerns expressed by consumers, businesses, and entrepreneurs about search, social media, and some retail services, "the Department of Justice said in a statement.
"Without the discipline of meaningful market-based competition, digital platforms could deal in ways that aren't responsive to consumer demands," added the Assistant Attorney General McCartney Delraim, of the Antitrust division.
The review will investigate practices from online platforms including Facebook, Alphabet's Google, Amazon and Apple.
The investigation is about calls from lawmakers, including democratic presidential candidates such as Elizabeth Warren, that companies should face more control.
On the last week, Facebook, Google, and Amazon have presented a grilling to the undersea for entrusted, commercial and administrative laws on their markets, including digital advertisement, e-commerce, and cloud computing.
Lawmakers questioned Amazon over the fees It lives against third-party vendors on the platform and whether it creates a monopoly of power. They also questioned Facebook executives over practices of targeting start-ups for acquisition and copying of companies that declined to be acquired.
Lawmakers also grilled Facebook this month over his plans to launch a global Cryptocurrency called Libra. At the hearing, Senator Sherroun Braun of Ohio said Facebook showed "close-ups" in trying to launch a digital financial service to a number of private private companies.
In July, the Federal Trade Commission approved a $ 5 billion fine against Facebook for its handling of user data around the Cambridge Analytica scandal in 2018.
"Facebook is dangerous," Brown said, and he liked the company as a toddler who played matches. “This has burned this house again and called for everybody to try and learn. Do you really think people should trust you with their bank accounts and their money? "
The investigation into Justice Investigation is already on its way, the Wall Street Journal reported on Tuesday. The department has hosted a private presentation of critics of large technology companies that have passed law enforcement officers on concerns and arguments for breaking the firms.
Facebook, Alphabet, Amazon and Apple have no equal response to requests for commentaries.