One of the key takeaways from this article is the following:
"Is genetic information protected?
In some places (like the European Union), genetic data is protected as personal information. In others (like the US) it's a different story. In America, protections are strong for DNA if it's submitted to a doctor, but non-existent if it's posted off to a commercial genealogy website."
The lure of possibly uncovering some morsel of family history blinds many people to the potential dangers of giving away one's DNA. Many years ago I railed against giving out one's Social Security number on applications that had no business asking for that data. People I spoke to at the time seemed to think I was paranoid. Now we see how SSNs can be used to steal one's identity. I don't trust any company that makes big promises to protect your DNA, For the right price they will turn on that promise.