23&Me as well as Ancestry and others, have contracts with medical bio-firms. This has been the case for years. So when a person gives a sample to find out about who they are related to, that sample considered intellectual property, can also be accessed and used for other testing - all under the guise of research which gets them around privacy issues regarding a person's personal property rights which that person signs away when looking for grandma. Some of these companies specialize in looking for longevity genes. Go figure. I have personally been targeted by these organizations to cough up a sample - for free. I have Centenarians in my family.

Believe it or not, around 2000 when all this ancestry genetic testing started, God told me it would be used for nefarious purposes. He has never lied to me.