From Jonathan Greig writes via The Record:

A researcher approached Recorded Future News after examining the leaked database and found that much of it looked real. [...] The researcher downloaded two files from the BreachForums post and found that one had information on 1 million 23andMe users of Ashkenazi heritage. The other file included data on more than 300,000 users of Chinese heritage. The data included profile and account ID numbers, names, gender, birth year, maternal and paternal genetic markers, ancestral heritage results, and data on whether or not each user has opted into 23andme's health data. The researcher added that he discovered another issue where someone could enter a 23andme profile ID, like the ones included in the leaked data set, into their URL and see someone's profile. The data available through this only includes profile photos, names, birth years and location but does not include test results.