Abstract: A top draw security holster as described herein is designed to prevent an assailant from drawing a handgun from the holster while allowing one wearing the holster to draw the handgun from the holster in a straight and upward motion after easily and quickly moving a latch control from a latched position to a released position. The latch comprises a flexible and resilient arm integrally connected to a sidewall adjacent to a window in the sidewall, and further comprises a boss integrally connected to the arm. In the released position, the arm is allowed to be in a relaxed state outwardly extending from the sidewall so as to allow insertion of the handgun into the holster or straight and upward drawing of the handgun from the holster. In the latched position, the boss extends through the window and inside the trigger guard so as to prevent drawing of the handgun from the holster.