The described embodiments relate to a locking mechanism for securing a housing of a computing device. More specifically, the disclosed embodiments are configured to both secure the housing of the computing device closed and to provide a means for securing the desktop computing device to a stationary object such as a desk. The locking mechanism can be two separable locking bodies configured to be received by separate openings in a housing of the computing device. Once the separate openings receive both locking bodies, a locking device can engage both pieces of the locking mechanism to lock both pieces to each other and to the housing.