Federal prosecutors are reportedly conducting a criminal probe into Facebook’s data deals with some of the largest tech companies in the world, The New York Times reports. A New York grand jury subpoenaed records from “at least two prominent makers of smartphones and other devices” who both had “partnerships” with the social network, the Times reports. Facebook reportedly had partnerships with more than 150 companies—including Amazon and Apple—that allowed the companies access to user data. “We are cooperating with investigators and take those probes seriously,” a Facebook spokesman was quoted as saying. “We’ve provided public testimony, answered questions and pledged that we will continue to do so.” It was not immediately clear when the U.S. Attorney’s Office for the Eastern District of New York launched the inquiry, or what the inquiry is focusing on.