As part of an elite unit of decoders, Patricia Barry spent most of the Second World War deciphering messages from spies operating in France, Belgium, Norway, Poland and other parts of Nazi ...

In cryptography, everyone involved knows a message has been sent. What's not known — except to the decoder — is the content of the message. From WWII-era Enigma machines to modern-day computer ...

Camouflage the message by surrounding the blue and purple dots with lots of pink, red, yellow and orange dots. Download and print the decoder glasses template on white cardstock. You can find a ...

The new Mystery Message Forever stamp is an invitation to puzzle lovers to solve the mystery and decode the message ... Duncan were Tamara Christian, the Spy Museum's president and chief operating ...