If you've bought from a Shopify store relatively recently, your data may be at risk due to an internal leak.
Shopify left this incident update on their community forum:
Recently, Shopify became aware of an incident involving the data of less than 200 merchants. We immediately launched an investigation to identify the issue--and impact--so we could take action and notify the affected merchants.
Our investigation determined that two rogue members of our support team were engaged in a scheme to obtain customer transactional records of certain merchants. We immediately terminated these individuals’ access to our Shopify network and referred the incident to law enforcement. We are currently working with the FBI and other international agencies in their investigation of these criminal acts. While we do not have evidence of the data being utilized, we are in the early stages of the investigation and will be updating affected merchants as relevant.
This incident was not the result of a technical vulnerability in our platform, and the vast majority of merchants using Shopify are not affected. However, those whose stores were illegitimately accessed may have had customer data exposed. This data includes basic contact information, such as email, name, and address, as well as order details, like products and services purchased. Complete payment card numbers or other sensitive personal or financial information were not part of this incident.
Our teams have been in close communication with affected merchants to help them navigate this issue and address any of their concerns. We don’t take these events lightly at Shopify. We have zero tolerance for platform abuse and will take action to preserve the confidence of our community and the integrity of our product.
To put it simply, we are committed to protecting our platform, our merchants, and their customers. We will continue to work hard to earn your trust every day.