Simplify the following text for a Grade 15 native English-speaking person.
Original: Administered under the Department of National Defense ( DND ) , it is charged with the duty of keeping track of foreign signals intelligence ( SIGINT ) , and protecting Canadian government electronic information and communication networks .
Simplified: It is under the command of the Department of National Defense ( DND ) , it keeps track of foreign signals intelligence ( SIGINT ) , and protecting Canadian government electronic information and communication networks .