I’m just of the general opinion that any personal data you entrust to any corporation is going to be at risk - regardless of it’s assurances. There’s also a risk of that corporation being legitimately acquired by another thus nullifying previous TOS, etc. Or worse case, they sell all your info anyway. Connected technology is moving quickly. What might seem safe to share today could become the basis of an insurance claim denial when they discover a genetic predisposition they believe you were obligated to disclose.