Hi,
Only to-day I learnt that the first Enigma encrypted messages were read during the invasion of Norway and Denmark 9 April 1940. They are contained in
HW 5/1 - Operations mainly in Norway and Northern Europe, Feb 6 1940-July 16 1940
Please also see:
http://www.bbc.co.uk/history/worldwa...nigma_01.shtml
bregds
SES