A century ago, the wireless revolution involving radio signals created security problems (at a na- tional level) that are similar to many wireless security problems faced today (at institutional and personal levels). One historical result was the Enigma Machine used by Germany in the second world war. This paper (and talk) will discuss (and present) an overview of this history in general and the Enigma machine in particular. The author has written an Enigma simulator used to gen- erate problems for students. The students then use realistic online Enigma machine software to decrypt the messages. A discussion of current day wireless security involving SID broadcasting, MAC address filtering, WEP, WPA, TKIP, etc., will be covered as an extension of the historical context of the Enigma machine.