the Battle of Tears, between Minmatar and Ammatar forces in YC102, was one of the highest casualty battles ever fought in New Eden.
Ah, Aliza did not call the cipher she used uncrackable. It's possible that eventually it would have been cracked, but she would have revealed the key long before it was. What Aliza said was uncrackable was a one pad pass. That is the encryption method that she uses for sensitive information.