I have a table of addresses that I am hoping to geocode so that I can perform some zonal statistics on them. I don't want to have to make my own address locator so was hoping to use ArcGIS Online World Geocoding Service. When you deploy this geocoding service does your table get sent out to their servers and live online or does their service geocode on the local machine/environment? The addresses I'm using is PHI so it shouldn't be shared and accessible through the general web.
Additionally, if ArcGIS Online does save this information or is not protective of this information what address locator service would I be able to use that's stored on my local server.