Re: Bombe
and, if I remember correctly, we can indirectly thank the way the Nazis often (robotically) included certain phrases at the beginnings and endings of the messages, apparently longer and more consistent phrases than the usual "Dear sir"
Also if I remember correctly, there were 2 codes used. Code #1 was in the book, and the 2nd code was encoded using the 1st one. but lazy operators might re-use the same code for the 2nd one. And so there you have it... procedural insecurity, ripe for being cracked by brilliant code breakers. (Bletchley Park is such a cool study on ciphers and cracking them)
