No, that's greyhat - the morally grey area. It's finding a hole and dicking around to see how it works.
Blackhat is outright stealing/espionage/manipulation of other devices for your own gain.
Blackhat is outright stealing/espionage/manipulation of other devices for your own gain.
There are whitehat folks who do the same...the difference being blackhat don't tell the company whose server they broke into how they did it.
Doing it for bragging rights is not accurate either. Plenty of them brag, sure, but they hack because they like to hack. People always want to make that more than it is.