With 23andMe being in town, a local TV Station did a story about this subject. A year +/- back. Privacy, & future use of the information was discussed. No real solutions. They spoke of how the DNA testing companies use the information. Much the way Facebook, et cetera, use their User's information for profitable purposes. The 'experts' interviewed offered an interesting suggestion. If one was concerned with DNA information (only, & not finding family), & their privacy........submit your sample under a false name.

Personal experience, we know of an individual, that was livid (I can't come up with a truly appropriate adjective) at his results. Said individual, sadly, is a very bigoted. OK, extremely, which isn't a strong enough word. His DNA came back & showed a large percentage of an Eastern Mediterranean group, which he had personal issues with. For no reason other than, just because. Needless to say, it wasn't a nice situation. Have no idea where the individual is, & am rather glad of that.