The genetic testing company 23andMe has said that nearly 7 million people have been affected by a security breach that put DNA ancestry information into the hands of hackers who broke into the site in early October. On Friday, the California-based company said in a regulatory filing that the personal data of 0.1% of customers – or about 14,000 individuals – had been accessed by “threat actors”. But the filing warned that hackers were also able to access “a significant number of files containing profile information about other users’ ancestry”. The company confirmed to TechCrunch on Saturday that because of…