I'd like to add that hacking has another connotation as well, as in the hackathon.

This idea is where a technology specialist or a newb attempts to create a use for technology that it wasn't intentionally created for.

A related concept is biohacking, wherein people find new ways to use the human body that haven't been thought of before, or in other words optimizing the capacity for human capability.

So I guess my point is hacking isn't just breaking into systems.

Many innovations that get incorporated into major use cases start of as hacks.