There were command codes of which he had no knowledge.
He had locked the door with a command code.
The fact that his command codes still worked didn't convince him.
Her left hand reached out and entered a command code.
Your command codes will be mine before a day has passed.
I've been sending Enterprise's command codes at you for the past couple of minutes.
Anyone care to guess what the third command code will be?
Only a lunatic would have changed Nike's command code without leaving a record.
He was actually threatening her with the command codes?
"We could find out what they know if you gave us your command codes."