Here's how to delete your personal data, including your genetic sample, from 23andMe

23andMe customers who once turned over the most personal form of information to the company — their own genetic data — may want it back after the personal genomics and biotech startup declared bankruptcy on Sunday. 

The 19-year-old company is seeking a buyer, which means that if not deleted, customer data could be transferred to a successful bidder. 

California-based 23andMe has more than 15 million customers worldwide for whom it provides information on genetic ancestry and health predispositions. The company also has a therapeutics arm, which conducts research and works to develop treatments for a range of conditions and diseases.