23andMe data leak

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The 23andMe data leak was a data breach at personal genomics company 23andMe reported in October 2023. The cyberattack gathered profile and ethnicity information from millions of users. The affected customers were reported to be not only primarily Ashkenazi Jews but also including hundreds of thousands of ethnically Chinese users. The hacker(s) stole information customers had chosen to share with their DNA matches, which could include their name, profile photo, birth year, location, family surnames, grandparents' birthplaces, ethnicity estimates, mitochondrial DNA haplogroup, Y-chromosome DNA haplogroup, link to external family tree, and any text content a customer had optionally included in their "About" section. On October 6, 2023, the company confirmed that the hacker(s) had illicitly accessed data on approximately 6.9 million users.