A security report was a report utilized on Federation Starfleet starships to summarize recent security issues of or suspected to be related to criminal behavior such as theft, unauthorized systems access, and unexplained systems damage. It was one of the responsibilities of the chief of security to give the commanding officer security reports.
Lieutenant Tuvok provided Captain Kathryn Janeway a three-page security report on a PADD during the USS Voyager's stopover at a Markonian outpost outlining incidents that supported Tuvok's concern with the high volume of visitors from the outpost. (VOY: "Survival Instinct")
Nygean Detention Force personnel also utilized security reports. While aboard Voyager, Warden Yediq filed a report that Neelix had access to and mentioned that Yedig's life was threatened by one of his prisoners Joleg after the prisoner attempted to escape captivity. (VOY: "Repentance")