The attacker in question is claiming to have the databases not just of Ledger and Trezor, but also KeepKey, Loanbase, Bitbond, BnkToTheFuture, and a variety of others. As you say though, no proof so far and both Ledger and Trezor deny anything matches with their database.
AFAIK both of them don't use shopify.
Ledger does. It states here that their webshop is hosted by Shopify (
https://shop.ledger.com/pages/other), and if you visit their shop and open developers tools, you'll see requests going to cdn.shopify.com.
Worth noting that both Ledger and Trezor allow you to request that they erase any details they hold about you from their databases. Although obviously too late for this hack (if it turns out to be true), it would still be worthwhile erasing your details from their databases.
You have the right to request access to your Personal Data, their rectification or erasure, as well as the right to request the restriction of the processing or to object to the processing.
Under Article 15 to 21 of the GDPR, you have the following rights that you are entitled to apply to the collector:
- Right of access,
- Right to rectification,
- Right to erasure,
- Right to restriction of processing,
- Right to object.
A reminder to always be very careful about giving out your personal details to
anyone, even companies which are as well known as Ledger and Trezor.