Kurt Alexander Eichenwald  is an American journalist who serves as a senior writer with Newsweek, a contributing editor with Vanity Fair and a New York Times bestselling author of four books, one of which, The Informant (2000), was made into a motion picture in 2009. He was formerly a writer and investigative reporter with The New York Times and later with Condé Nast‘s business magazine, Portfolio. Eichenwald had been employed by The New York Times since 1986 and primarily covered Wall Street and corporate topics such as insider trading, accounting scandals, and takeovers, but also wrote about a range of issues including terrorism, the Bill Clinton pardon controversy, Federal health care policy, and sexual predators on the Internet. {Wikipedia}

https://en.wikipedia.org/wiki/Kurt_Eichenwald