(CNN)From his hideout in the mountains of Northwest Mexico, Joaquin “El Chapo” Guzman took pleasure in secretly listening in on the conversations of his wife, mistress and cartel associates, thanks to spyware the cartel leader had installed on their cell phones by an IT technician.
That technician is Christian Rodriguez, a 32-year-old Colombian who dropped out of college to start his own cybersecurity company and ended up working helping drug cartel members secure their communications.
Rodriguez is a cooperating witness who is living in the United States, and prosecutors have asked that his face not be drawn or shown as he testifies against his former client. The two locked eyes as he began his testimony, and Rodriguez appeared nervous during questioning.