In high school (over 2 decades ago), I figured out how to crack the school security software (and obtain its master password, thank you Windows swap file!) and after doing so, I installed a keylogger on the school library computers. I got access to dozens of email accounts, instant messaging accounts, etc. I'm self-taught all the way. In fact I dropped out of high school junior year with a 1.76 GPA. I knew what was right and wrong, but not yet mature enough to fully grasp the harm it does. I don't think any sort of ethics teachings would've changed anything.