"Multilevel security" (5) means a class of system containing information with different sensitivities that simultaneously permits access by users with different security clearances and needs-to-know, but prevents users from obtaining access to information for which they lack authorisation.N.B.:
"Missile" (1, 3, 5, 6, 7 et 9): système complet de fusée et de véhicule aérien non habité, dont la portée est au moins égale à 300 km et capables de transporter une charge utile d'au moins 500 kg.