1. A system for securing computing resources, the system comprising: a personal digital key adapted for wireless communication within a predefined range to establish a link and send and receive data; a reader for automatically detecting the present of the personal digital key and establishing a link with the personal digital key, the reader having an input and an output and adapted for wireless communication with the personal digital key when the reader and the personal digital key are within the predefined range of each other, the reader automatically signally when it is linked to the personal digital key; a computing device having computing resources, the computing device coupled to the input and the output of the reader for sending and receiving data; the computing device including a security system for controlling access to the computing resources of the computing device, the security system controlled by a signal from the reader indicating whether the reader is linked to the personal digital key.