It's English, and literally translates as "black hat". He is actually a category of hacker who went to the dark side and became a cracker, using his computer skills to commit crimes. The name is taken from westerns ("films about the American Wild West") where good cowboys wore white hats and bad black hats. See cybercrime .
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list