I've been really concerned about how freely people seem to give their DNA away to testing services like 23andMe or Ancestry DNA. I just get this feeling that i

I've been really concerned about how freely people seem to give their DNA away to testing services like 23andMe or Ancestry DNA. I just get this feeling that in the next few decades genetic code may become the pinnacle of biometrics as a part of multi-factor authentication. i.e. something I know, something I have, and something I am. And DNA databases that are potentially loosely secured, or at least secured as well as credit bureau's data, seem like a great way to unwittingly expose one's future self. I bring this up because multi-factor authentication still seems to be a struggle to implement well for the masses, and while people here complain about these personal questions being insecure, I can't really think of a reason why genetic code won't become the ubiquitous standard for the vast majority of the population to prove their identity. Yet here people are giving it away, and even paying for the privilege.