NEW YORK — The whistle-blower at Cambridge Analytica, the data-mining firm linked to using social media for targeted political ads, has a book deal.

Christopher Wylie’s ‘‘Mindf*ck: Cambridge Analytica and the Plot to Break America’’ will be published Oct. 8, Random House announced Monday. Wylie is a former research director at Cambridge who alleged the company had illegally accessed data of millions of Facebook users that was used to support the election of Donald Trump.

Cambridge was founded by such conservative power brokers as billionaire Robert Mercer and former White House aide Steve Bannon. Wylie’s allegations have led to investigations and hearings in the United States and the United Kingdom.