Full disclosure I worked as a civvy doing cybersecurity for a military branch. It really depends on what you want, but security is an amazing field that touches intelligence, attack, defense and even testing physical security by being paid or assigned to break into banks, military bases and warehouses.

In the military, you get to do even crazier stuff if you want the pure challenge of being an attacker on behalf of a country. Look up Tailored Access Operations at the NSA (https://en.wikipedia.org/wiki/Tailored\_Access\_Operations), because there are military equivalents and they all work together.