Abstract: An electronic device having a PC card slot is secured by an apparatus inserted into the PC card slot. The apparatus tethers or otherwise secures the electronic device to a display stand. The securing apparatus includes a lock structure and a key structure. The lock structure slides into the PC card slot and locks into place. The lock structure includes a portion shaped to PC card standards, a groove area trailing the PC-card shaped portion, and a blocking portion trailing the groove portion. Upon installation, the PC card slot door closes into the groove portion. The lock structure also includes one or more security barriers and an area for receiving the key structure. The key structure defines one or more slots corresponding to the security barriers. The security barriers and key slots mate as the key structure slides into the groove portion. The key's progress into the groove pushes the PC card slot door out of the groove freeing the lock structure for removal.