The details of 23 million users of online merchandise provider CafePress Inc. have been stolen and shared online in a hack that neither CafePress nor its owner Snapfish Inc. have publicly disclosed as of Monday.

The hack is believed to have occurred in February and only came to light after a database of the customer records was provided to Troy Hunt, the owner of the Have I Been Pwned breach database site, by cybersecurity researcher Jim Scott.

The database contains 23,205,290 CafePress customer records, including email addresses, names, phone numbers and physical addresses. About half the records also had encrypted passwords attached, with most of them hashed using an older form of encryption known as “base64 SHA1,” according to Forbes, that’s easily broken in 2019.

CafePress has not commented publicly on the hack, but it would appear to be fully aware of it. Customers have been forced to reset their passwords under the guise of a new password policy.

Pretty disingenuous of CafePress to mask a data breach of names, mobiles, and street addresses under a password policy update. pic.twitter.com/t7RUt6pRKH

— darren (@darrenpauli) August 5, 2019

Tech journalist Darren Pauli told The Register that “I went to log into CafePress to see if they had my current street address and it threw that ‘change password’ page. No sign anywhere on the homepage or login of the breach – which Hunt puts as February this year – and no email in my inbox from them to notify me.”

Exactly how long CafePress has known of the hack remains unclear, but as with recent hacks, it’s likely to gain the attention of the European Union under its General Data Protection Regulation. As was the case with sneaker site StockX, which also failed to come clean right away on its hack, the regulation not only includes fines for companies not taking proper care to prevent hacking but also requires disclosure within 72 hours of its discovery.

The only possible solace for CafePress customers affected is that some of the data are not new. Some 77% of the email addresses in the CafePress hacked and shared database have been disclosed previously in other hacks published by Have I Been Pwned.

CafePress users should change their passwords as soon as possible to be on the safe side.

Image: CafePress