backdoor Synonyms

back entrance backyard offstage backstage backroom back room back passages furtive back channel daleth unseen underhanded liftgate logic bomb anal orifice rear entrance dissimulated side door unpublished undercover off the record conspiratorial off-stage camouflaged computer virus underhand underground covered confidential clouded classified clandestine behind backstairs back stairs back door back covert cryptic discreet surreptitious stealthy secret private postern esoteric enigmatical door dissembled disguised