Xavier Niel, a little hacker from Créteil who became the 10th richest person in France. In 2004, he spent a month in pre-trial detention at the Santé prison in Paris, in an old case of misuse of corporate assets.

Source Code retraces this extraordinary journey with Aurélie Lebelle, journalist in the economics department of Le Parisien. Listen to Code source, the current affairs podcast from LeParisien, from 6 p.m. on Monday to Friday.