Given the distinguishing characteristics of red hats as opposed to the other five types of hackers, we can sum up what they do as the following:
Red hats fight off attacks that black hats launch.
Red hats work with white hats to thwart cyber attacks.
Red hats don’t get paid for working against the bad guys like grey hats do but they may be in it for the fame.
Red hats don’t seek revenge nor rewards for what they do like blue hats do.
Red hats are very tech-savvy unlike green hats who are newbies.