Listen to John's conversation with Glen Meek. Along with Dennis Griffin, Glen wrote Wrong Numbers: Call Girls, Hackers, and the Mob in Las Vegas.
You will hear about the mob's illegal call girl business being hacked by other criminals who could divert calls to their own call girls. It happened in the 1990s when Glen was an investigative reporter.
Glen write that if Hollywood was to pitch this it would be Goodfellas meets Risky Business meets Wargames.
Here is the video about Wrong Numbers: https://www.dropbox.com/s/gf4jlo9y4dmq9lu/WRONG%20NUMBERS_2.mp4?dl=0