It basically doesn't matter if you share your DNA or not-- if your siblings or extended family share their DNA, then a malicious actor knows almost as much abou

It basically doesn't matter if you share your DNA or not-- if your siblings or extended family share their DNA, then a malicious actor knows almost as much about you as they want to. This is how Osama bin Laden was found, as well as the golden state killer [1]. Maybe justified in those cases, but if it's abuse you're worried about, nothing but extremely stringent laws have a hope of protecting you. Probably not even that. [1] https://www.washingtonpost.com/news/true-crime/wp/2018/04/27/golden-state-killer-dna-website-gedmatch-was-used-to-identify-joseph-deangelo-as-suspect-police-say https://www.washingtonpost.com/news/true-crime/wp/2018/04/27...