Abstract: A computer which includes a computer chassis and a door is disclosed. The chassis includes a slot and the door includes a corresponding slot which are aligned when the door is in the closed position so as to create an opening which extends through the chassis and through the door. A tab assembly is inserted into the opening. The tab assembly includes two tabs which are coupled together such that the tabs may move laterally with respect to each other. The tabs may be moved into an extended position such that they latch the door to the chassis. A padlock may then be inserted into an opening within the tab assembly so as to lock the tab assembly in the extended position and thereby lock the door to the chassis.