You bring up a good point. We have a privacy policy in which our lab does not know the name of the customer through the entire process ensuring confidentiality. We also delete your DNA after 30 days when your guarantee expires. Finally to ensure your identity protection, we do not sequence your entire DNA. We only sequence a portion. You can think of this as only having the first four digits of a credit card. To actually have an even better idea, imagine only having one digit of your credit card. That's the amount of DNA that is sequenced in respect to the entire human genome. When taking these measures into consideration, we believe the issue of personal identification becomes non-relevant.
That is a good point. What we do is Sanger sequencing. This is sequencing of up to 500bp of DNA and not the whole genome. This type of sequencing is much more affordable.