The word "classified" means information or objects that are kept secret or private, usually to protect them from being known to the public. Full definition
I also think rape is not as easily classified as, say, murder, where you have 1st and 2nd degree etc.. (nextleft.org)
Join for sex adds northern beaches and the search terms of classified ads in your toilet slave for no one night stands. (medtur-online.biz)
If it's a type of service such as online classifieds that is not closed and others can view your resume, you may not want to provide more sensitive information. (topresume.com)