With a Churn prevention program, you will have an AI / ML model which predicts which of your employees have the greatest possibility of changing jobs.
Models are usually set up in the cloud, where you access them via a VPN. You can anonymize the data sent back and forth by processing it locally at your location. In cases where sensitive data is involved, the model can be set up locally with you, so that the data does not leave your premises. Maintaining the model and setting up the environments in which the model must run will require a little extra work.