23andMe has temporarily disabled the functionality for DNA segment triangulation

+17 votes
710 views

I just received a notice this morning:  "23andMe has temporarily disabled the functionality for DNA segment triangulation on their website due to security concerns related to unauthorized access through credential stuffing. This impacts features such as "DNA relatives-in-common" and the ability to explore specific DNA matches, including chromosome details and start/end positions.

"Currently, it is uncertain when 23andMe will reinstate these features. For those interested in genetic genealogy, we recommend considering alternatives from platforms that continue to support the community during this period."

You can read 23andMe's blog here.

in The Tree House by Darlene Athey-Hill G2G6 Pilot (541k points)
edited by Darlene Athey-Hill

Roberta Estes has just released a new blog post that dives into this issue in greater detail. Worth a read.

3 Answers

+18 votes
 
Best answer
Thanks Darlene (Athey-Hill) and Ed (Williams) for giving background information to my email and thanks Darlene for posting the info as a G2G post.

To be perfectly clear, I'm the author of the "Your DNA family" app, I'm not affiliated with 23andMe or any of the other DNA testing companies.

I've sent an email to all people that have subscribed and this is where the quotes mentioned by Darlene are from. Maybe the confusion comes from the last line where she lined back to 23andMe's blog post about the recent exposure of user data.

Kristina (Adams), it wasn't meant as an advertisement but I guess I should do some informational campaigns so that genetic genealogist know what "Your DNA family" is. I had people asking if it's a scam on the biggest Genetic Genealogy forum as well.

As for the recent development at 23andMe, this is very sad for the genetic genealogy community IMO. Not only aren't we able to continue our research right now with no way that we can access where DNA matches share DNA with us or download the relatives file (with all this information). It's unclear if these services/tools will ever come back in the same, much more restricted or not at all.

It's also a big set back to the genetic genealogy community in that we will now face even bigger hurdles when we try to convince relatives to do a DNA test, even if we pay for it.

Rest assured, the 23andMe data of our users is saved safely in the cloud and none of their information is lost (that's why they also have way more 1,500 DNA matches without paying for 23andMe's subscription). I will continue to work with my current employees on providing our users with an alternative way to use their 23andMe data, should 23andMe decide to restrict or even discontinue these essential tools for genetic genealogy.

But it's a big blow for all of us and IMO it's a knee jerk decision that seems to indicate that 23andMe currently has no confidence (clue?) to be able to differentiate between a legitimate user accessing vs a bad actor using credentials stuffing like in the recent case. Otherwise they wouldn't have taken such a drastic step to roll down the shutters and reduce the area of attack.

The amount of tools for our hobby are getting less and less (now that Ancestry has put some of their tools behind a paid subscription service) and 3rd party developers like Jonny (Perl), Rob (Warthen), EJ (Bloom) and myself are getting zero support and in some cases even cease & desist letters from the DNA companies lawyers.

The social media posts and news outlets jumping on the hype train by posting incorrect headlines (eg. "Data breach at 23andMe") in order to maximize the number of visits their website gets (and thus maximizing their ad revenue) aren't helping our cause, they are actually harming the genetic genealogy community tremendously.

Luckily the genetic genealogists I got to know over the past 10 years are all extremely motivated and thus we will hopefully overcome this setback as well, as we did with so many others in the past.
by Andreas West G2G6 Mach 7 (76.0k points)
selected by Darlene Athey-Hill
+6 votes
That information was sent by "yourDNAfamily" and seemed to me to be an advertisement for that company.

I donʻt know what "yourDNAfamily" is, perhaps it is a subsidiary of 23andMe. It is based in Singapore.

I also donʻt know if 23andMe made the announcement or whether it is true.

Can someone with more information please explain.
by Kristina Adams G2G6 Pilot (352k points)

It wasn't an advertisement.  YourDNAFamily is a site that helps people analyze their DNA matches at 23andMe.

Andreas West, a fellow Wikitreer, started the site, YourDNAFamily, a couple of years ago.  Back then he was looking for beta testers for the site and I volunteered.  He made this recent announcement to inform his users.

23andMe has indeed done what Andreas said.  You can read their blog here.

If you go to one of your 23andMe test kits and click on a DNA match, 23andMe no longer shows common matches, making the site useless at this point to try and identify a common ancestor.

Darlene's correct. The YourDNAFamily message actually contains a bit more useful information than the 23andMe blog, but at this juncture I expect them to be playing things close to the vest. There have been a spate of (in my opinion rather ridiculous) lawsuits filed against them.

Corroborations of the imposed (temporary) limitations began coming in from surprised 23andMe members via various online forums as early as 2:00 a.m. Eastern today.
+11 votes
Roberta Estes claimed way back in March 2021 that 23andMe had stopped showing triangulated matches directly, and was now showing only overlapping matches, with no indication as to whether the overlapping segments were from the same parent or from opposite parents:
https://dna-explained.com/2021/03/08/23andme-changes-triangulation-doesnt-work-the-same-way/

However, there was a chromosome browser at
https://you.23andme.com/p/[kitID]/tools/relatives/dna/#
which allowed more labour-intensive manual triangulation.

Some weeks ago, I noticed that even the indication of overlapping matches had disappeared, requiring the labour-intensive manual triangulation for all matches.

What have disappeared today are both shared match lists and the chromosome browser (which is diverting to the match list).

So what 23andMe customers have now lost are just the last remnants of the full functionality for DNA segment triangulation which was being sold three years ago.
by Paddy Waldron G2G6 Mach 6 (61.4k points)

Paddy, the loss of the triangulation feature reported by Roberta Estes in March 2021 was very short-lived (about three days as per my comments). Roberta never updated the top-level post. 

The most recent loss of triangulation was reported in her blog on Sep 8, 2023. I have since learned that was not an oversight, but 23andMe responded to my query with the following statement (which I also posted on Roberta's blog Sep 16): “We’re exploring ways to make this type of data available to the people who want it, while not impacting overall performance of our systems.”

Right now all direct DNA comparisons are shut down because of the credential stuffing attack. I suspect the hacker had already amassed whatever data he could access and this latest shut down is futile. I don't think this will be resolved any time soon, but I am hopeful we will get some more functionality back sometime. At least we are getting new matches on our DNA Relatives list. 

Thanks, Ann.

I think I just found that 2021 blog post when I was trying to figure out what had happened in September 2023, but I never read the most interesting comments and didn't realise that was where I would find the answers which I was looking for.

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