Philippe Grumbach was the former director of L'Express in the 1970s. He was a spy for the secret services of the USSR.

He hid behind the alias "Brok" and died in 2003, at age 79. “One of the greatest Soviet spies of the Fifth Republic,” says the company's editor-in-chief, Etienne Girard, who carried out a long-term investigation in the KGB archives. "It was impossible not to reveal this gray area within a newspaper which, from Jean-Jacques Servan-Schreiber to Jean-François Revel, has always strived to combat utopias totalitarianism and the ravages of communism," writes Eric Chol.