Security is part of your background check I think. It’s like csis and CBSA, federal agencies, doing checks
These two threads are helpful
https://www.canadavisa.com/canada-immigration-discussion-board/threads/the-anatomy-of-a-background-check-in-depth-analysis.500146/
https://www.canadavisa.com/canada-immigration-discussion-board/threads/what-is-background-check-means.550013/
These two threads are helpful
https://www.canadavisa.com/canada-immigration-discussion-board/threads/the-anatomy-of-a-background-check-in-depth-analysis.500146/
https://www.canadavisa.com/canada-immigration-discussion-board/threads/what-is-background-check-means.550013/