@FlyingCatGirl I think you may have misunderstood the point I was making.
I’m fully aware ancestry DNA results are based on statistical comparisons to reference populations and are not literal “birthplace detectors.” I never claimed a DNA test could accurately tell someone they were born in Hull, Lagos or anywhere else. Your example actually supports that point.
My concern was never that ancestry companies can pinpoint where somebody was born. The concern is about what happens when large amounts of genetic and personal ancestry data are collected, stored and then exposed through breaches or shared more widely than people expected.
And while you’re correct that the 23andMe breach primarily involved account access and downloaded ancestry reports rather than thieves physically stealing saliva tubes from a lab, those reports still contained genetic ancestry information, family matches and ethnic background data linked to identifiable accounts. For many people, that is sensitive information.
You seem to think the only risk worth discussing is whether DNA can literally prove nationality. That’s a very narrow interpretation of the privacy concerns people have about these databases.
The broader issue is that genetic data is uniquely personal, permanent and connected to relatives as well as the individual user. Once it’s uploaded and linked to identity information, people lose a degree of control over it. That’s the part some of us are uncomfortable with.
And respectfully, there’s no need for the insults. People can disagree about the risks without calling each other liars or infants.