Kek
WH : follows laws rules and regulations
BH : does not, think pedophile porn posters or the story about Sharyl Atkinson's husband getting child porn attacked
GH: white hats that have to push the limits because in a legal system where white hats follows rules and beaurcracy it got subverted by black hats blocking the path. Gray hats in a digital soldier term could very easily be a variant of militia. In terms of a legal system, it could be white hat military hackers crossing into the civilian legal sector.