CafePress, the popular T-Shirt and merchandise website, disclosed a data breach that exposed the personal details of 23 million of their customers.
CafePress was compromised in February 2019 and hackers accessed personal details of 23,205,290 users. The exposed data included email addresses, names, passwords, phone numbers, and physical addresses. More details on the breach can be found in this article.
If you purchased merchandise from this website, you can find out if your personal information was compromised by entering your email address in the Have I Been Pwned website. If your data was a part of this breach you will see the following information under "Breaches you were pwned in" and you should immediately change your Cafe Press password and any similar passwords you have used on other web sites.