Database ledger hack, trezor, BnkToTheFuture

According to the Twitter account Under the Breach, a hacker would have recovered several databases including that of the Ledger shop, and Trezor and many others like BNk To The Future, the hacker would hold the complete SQL databases.
According to the site behind the news, the Ethereum forum hacker would sell these databases

Below another tweet on the subject

The question is whether it is really serious, in my opinion it does not have too much, because it holds the usernames and addresses of the people who bought Ledger, even if it has more information, for validate a transaction you must press the two buttons of Ledger, for the sites in question everyone currently knows, that all sites recommend using Google autenthificator, so I think it is not very serious, but for the reputation it is. And the problem as now that it has this information can it go further?