what should I do?

so I hired this nanny for my 8 month baby everything was good she seem I can trust her I hired her the same week.. then the first day of work I I told her everything she needed to now and also told her I have cameras in the house.. once I told her that she says she didnt feel

comfortable & have no interest in the position again ! now im back to square 1 with no sitter but should I be concern and warn others ? was I invading her privacy? i honestly feel i rather let ppl no i have a camera to avoid them doing anything thinking i dont have a camera