In high school I port-scanned the entire district network internally and sent direct prints to district HQ printers complaining about their lack of segmentation.
@SwiftOnSecurity In middle school, while working a summer job, I hacked into the payroll system and gave my self a $10/hr raise. I marched into the company president's* office to show him how insecure the computer was (Early 80's PDP clone, I think. Don't recall the exact model)
The President was pleased by my efforts but the company Controller was *NOT* happy.
* Company president = dad. Lesson: Have backing of management before performing white hat hacking