How to password protect running an application?

Lets just say for example your VPS or dedicated hosting provider has administrator rights. They can go in and run an application like EZ Autoresponder and basically steal your campaigns.

I was wondering if there was a way to provide an application level layer of password protection so if an admin were to do something sneaky like this, they would be hit with a password and then they would not be able to run the application and be able to steal your campaign.