any information that goes through that DEVICE - their sim card or not - the owner has a right to retrieve and review that data. Furthermore, are you authorized to make alterations of any kind to it? I can almost promise you that if/when you sign for it, it will explicitly state that you can't and any use for it other than work related issues may be prohibitedSeems as though the general concensus is to keep two phones. I had that thought in the back of my head but also like to save a nickel where I can. But it seems like it’s not worth it from a privacy standpoint and possible outcome of using the work phone only.
However I would like to look into this dual SIM card option @RDJ mentioned. Or maybe there is a way to auto forward texts to my personal phone.