A thought I had about online prayer roll submission

It was announced recently that the LDS church will allow you to submit names onto the prayer roll of any temple you choose.

Several others have talked about if the names will be printed off in the bag or something like that. others have talked about if all the names will just be put into a tablet that will be prayed over.

I realized that there may be privacy concerns regarding the prayer roll. How will the church handle names that they’re given? How secure will the names be from hackers? Will the church pass along the data of who submitted what name to 3rd parties? Will the church pass those names along to facebook missionaries to reach out to?