I found this comment - I have already covered the fact that both 23andMe and Ancestry sell your DNA to whomever for whatever they see fit.- in a blog. Good thing I chose NOT to test with these 2 companies!
It seems that My Heritage also sells anonymized DNA information, but not the DNA itself.
And FT DNA does not sell your DNA period!!
I chose to do my test with FT DNA and upload only the raw data text file to My Heritage.
As for the blog post - the writer had a motive. Their brother died of cancer in 2012 and they are somewhat pissed about that - because conventional medicine did not save the poor boy!!
But of course conventional medicine does nothing to cure cancer. They use chemo to make huge profits, and make money off your poor health!!
If you want to cure cancer you have to go alternative. It has been done and it works too.
But I am getting off topic.
23&me, Ancestry and My heritage all sell your DNA results and FT DNA and GEDmatch do not.
So those are your choices. If you are an adoptee looking for biological family, you have to weigh that up against your DNA details being sold off.
Below is the blog post I was quoting from. It is a LONG post - so be warned.