As an example.....

If they were monitoring a private chat program, then (ala enigma) it would make sense for the enemy to believe its still safe.

Many people are not aware but some aspects of the sources and methods from the Enigma program from WW2 are still classified.
There was a lot more going on at Bletchley Park than just cracking enigma.

Posted By: usacanary, Sep 28, 14:21:54