Answer: restricted

AnswerCrossword Clue
RESTRICTEDSecret, as some information
RESTRICTEDLimited.
restrictedLimited in extent, number, scope, or action
restricted(of DNA) Subject to degradation by a restriction enzyme
restricted(of a virus) Unable to reproduce at its normal rate in certain hosts
restrictedRESTRICT, to keep within boundaries
restricted(of a document or information) For limited circulation and not to be revealed to the public for reasons of national security