A mobile application security system and method, in the preferred embodiment, ensures the integrity of a mobile application's multi-jump access control list (ACL) by either (a) checking the compatibility of a mobile application's multi-jump ACL with a known accurate multi-jump ACL, or (b) overwriting a mobile application's multi-jump ACL with an ACL which is known to be accurate, depending on whether the host dispatching the mobile application is trusted or not trusted to modify a mobile application's multi-jump ACL, respectively.