Archive | 2025

23andme: Don’t panic

Filing for bankruptcy does not change the day to day operations at a company nor put your data at more risk than before. Plus, as I have said previously, your DNA is not your social security number nor your bank account; it is more like a giant fingerprint that identifies you. Thus I do not recommend deleting your data at 23andme. Many journalists these days try to increase clicks by fear mongering.

My take on these latest developments is that by declaring bankruptcy and stepping down as CEO, Anne E. Wojcicki gives herself one more chance to buy the company she founded with two others and take it private. Her previous two proposals were turned down by each board of directors.

I have listed some more balanced news sources and blog posts at the end of this article.


A short history of 23andme seems in order. Founded by Wojcicki and two others in 2006 [source: wikipedia article], it was the first place to test your personal genome. Their focus was, and always has been, discovering the medical issues in your own DNA, inspired by the search for the cause of Parkinson’s which Anne’s mother-in-law was diagnosed with. Some discoveries have been made and are discussed here.

​However, the desire to understand one’s personal health risks was never as strong as the desire to uncover one’s roots, particularly for Americans. Plus the business model of selling DNA kits was never as successful as the model at genealogy-focused companies which include family trees and records once you have a paid subscription. Access to DNA health data for pharmaceutical companies was not lucrative enough to make up the difference.

The lack of financial success was compounded by a data breach that ensued from users who reuse passwords. This allowed bad actors to gain access and create lists of users with Jewish or Chinese ancestry. Although those are reputedly for sale on the dark web, I have not yet heard of any dire outcomes. The result is that all the DNA companies now use two-factor authentication.

​Not surprisingly, 23andme stock plummeted. User lawsuits resulted in a settlement. Anne E. Wojcicki, who owns a 49% share, made an offer to buy the company and take it private but the board turned her down and resigned. The next board also turned down the offer she made a few months later. By declaring bankruptcy and resigning as CEO, perhaps she can finally buy it.

Various news and blog sources:

By the way, the California Attorney General did NOT recommend that you delete your 23andme data, he just explained how and reminded us of the strong California privacy and data laws. Click here for what he actually sent.

Where personal DNA testing is today

All the DNA testing companies are still refining and improving their bio-ancestry estimates (which they call ethnicity). They are getting closer to agreeing with each other now, but that aspect of DNA testing is not yet a firm science. A number of companies have recently updated their estimates. Ancestry did a major update in October 2024 (click here for that white paper) and MyHeritage just did an update as well. The main effect on my family’s results is a far more accurate prediction of our Norwegian percentage. In the past, all the companies, except Ancestry, called our Norwegian Scandinavian and English. MyHeritage even gets the locations in Norway correct, since we have ancestors from 3 different areas. This is due to my grandad, born in Kristiansand, marrying the daughter of Norwegian immigrants (from Vestland and Hordaland) who met in Brooklyn.

Above are my brother’s current estimates with the new MyHeritage update. Since we have one German Jewish grandfather, I love to see how much each company assigns to Ashkenazi (northern European Jewish) for me and my brother. They all agree that I got about 8% more from our grandad than he did, but the exact amounts are different. Plus MyHeritage now breaks the Ashkenazi into Western and Eastern Europe. My brother got those refinements (added in to Jewish below) but I did not.

Our various bio-ancestries, note Family Tree DNA is actually called Scandinavian not Norwegian. Also the extra jewish regions for MyHeritage have been added back in.

In the past MyHeritage showed only 44% Scandinavian and 27% English/Irish/Scottish which did not fit with the fact that my Dad is Norwegian going back to the 1500s. Now they show me with 53% Norwegian and no British. Ancestry has long since gotten rid of the erroneous British etc. prediction (it’s now 1%) while Family Tree DNA still has that. Yes my ancestors visited the British Isles and undoubtedly left some genetic material … While he was still alive my Dad did a 23andme test and they predict 97.3 Scandinavian for him with the rest Finnish. Unlike MyHeritage and Ancestry, 23andme does not break down Scandinavian by country.

I have a previous blog post (click here) about our ethnicity percentages where I remind my readers that “Although you inherit half of your DNA from each parent, they do not have to pass you an equal amount from each of their parents.” As you can see above, my brother and I got different amounts from our Jewish grandfather.

As the experienced tester knows, it’s the relative matching where the companies excel, although the exact relationships of more distant relatives cannot be accurately predicted. Even close family relationships, like uncle versus half brother versus grandad, are not always clear. (Click here for my post on that). Looking at that person’s relationships to other family members plus age and location can often get you to an answer.

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