Tully is looking into whether the cameras are in compliance with Nova Scotia's privacy laws.
Images of children near washrooms, in hallways and in the school yard being made public are concerning, she told CBC News on Thursday.
Mac Donald said a letter was also sent home with students Wednesday afternoon.
"An investigation is ongoing into the specific incident at Rankin, and remediation actions are ongoing in other schools," he said.
From the day it was founded the School has operated on an exclusively charitable and voluntary basis.
We ask the parents of all our children to take an active part in the life and work of the School.
The opportunites you'll find here, and the support we offer you, can make all the difference to your experience of Cambridge.
Tully said passwords need to be encrypted and the length of time images are kept should be limited so they are less likely to be accessed.
Five Pembroke Fellows have been promoted to Professor or Reader this year: Silvana Cardoso Promoted to Professor Research interests: Industrial and environmental fluid mechanics, two-phase flow, mixing and mathematics.
The following list of links is not intended to be definitive or comprehensive, but it may act as a starting point in your use of the web, and provide ready access to some of the more useful web reources.