Stealth discovering security cameras

“You smuggled food back to your room?”
“I did.”
“Weren’t you worried about someone watching you eat with all these cameras?”
“There are three in my quarters,” she said. “I disabled the two visible ones and allowed them to think I had not discovered the one concealed in the air vent. I ate with my back to it.”

Excerpt From Ex-Patriots, pg 362
Peter Clines
https://books.apple.com/us/book/ex-patriots/id585738393