Julio Fernandez studied computers in grade school. He was arrested in the 90s and faced criminal/federal charges in a case that was called one of the most extensive thefts of computer information ever reported.
https://en.wikipedia.org/wiki/Masters_of_Deception https://www.nytimes.com/1992/07/23/nyregion/computer-savvy-with-attitude-young-working-class-hackers-accused-high-tech-crime.html https://www.washingtonpost.com/archive/business/1992/07/09/5-indicted-in-computer-infiltration/58bebef5-d068-4ef2-8f6a-f0512788e55b/