Federal prosecutors are investigating Facebook for its data-sharing deals with major technology companies including Amazon, Apple and Microsoft, according to a report by The New York Times.
A New York grand jury has subpoenaed records from "at least" two companies who create smartphone and other devices, revealed the report which cited two sources.
The two companies being investigated are among a group of more than 150 of the biggest names in the tech world that allegedly entered into partnerships with Facebook giving them access to the personal information of hundreds of millions of its users.
Following a year marred by data scandals, most prominently the Cambridge Analytica scandal in which 50 million users' data was shared by Facebook, it was revealed in June and December 2018 that the social media giant had given Spotify, Netflix, Microsoft, Sony and Amazon, among others, unconsented access to data.
At the time the scandals were revealed, Facebook contended that its data partnerships were not in violation of privacy agreements.
A Facebook spokesperson told The New York Times: "We are cooperating with investigators and take those probes seriously. We've provided public testimony, answered questions and pledged that we will continue to do so."