A single such activity may be called a black bag operation; that term is primarily used for covert or clandestine surreptitious entries into structures to obtain information for human intelligence operations. Such operations are known to have been carried out by the FBI, CIA, Mossad, MI6, ASIS, COMANF, DGSE, MSS, R&AW, DGFI, ISI, SVR, FSB and the intelligence services of other nations.