Abstract: Embodiments of the present disclosure are directed to locking mechanisms for security cabinets. In one embodiment, the locking mechanisms for security cabinets provide a visual indication of whether the security cabinet is locked or unlocked. The security containers include a handle assembly that is coupled to the locking mechanism. The handle assembly may be positioned in at least three positions corresponding to the security container being locked and latched; being unlocked and latched; and being unlocked and unlatched. Because the handle assembly is positioned in these plurality of positions that correspond to the lock and latch status of the locking mechanism, indication of the lock and latch status of the locking mechanism may be understood by visual inspection.