I wish I knew how to effectively communicate to people not to copy paste sensitive data into translate.google.com whenever they need a translation. Even some d

I wish I knew how to effectively communicate to people not to copy paste sensitive data into translate.google.com whenever they need a translation. Even some dedicated translation apps that you install on your desktop actually upload everything to a 3rd party server for translation. I would love a list of local-only translation software that were close to as effective as the various online options... or even online but with a good data policy.