The doctor's idea is excellent, but your right, the information can leak, and not just from data breaches but also via the Law enforcement, the government, and

The doctor's idea is excellent, but your right, the information can leak, and not just from data breaches but also via the Law enforcement, the government, and other companies via mergers and acquisitions or they just may sell the information or give it away. Doctors can sell their practices, or be acquired by large business interest. Something else to consider though, any relatives will have pretty much that same information and may decide to have analysis done under terms you would not accept. This is what lead to the Golden Stake Killer's capture. You might also want to consider is who will interpret the information and will it yield reliable information, or just a guess? Here are a few stories about identical twins getting different results: https://www.cbc.ca/news/technology/dna-ancestry-kits-twins-marketplace-1.4980976 https://www.cbc.ca/news/technology/dna-ancestry-kits-twins-m... https://www.healthyway.com/content/these-identical-triplets-were-shocked-to-learn-that-their-dna-didnt-match/ https://www.healthyway.com/content/these-identical-triplets-...