Amazon customers woke up on Wednesday to an email saying a technical error caused the site to disclose their names and email addresses. While Amazon officials have said the emails are authentic, they aren’t providing additional details beyond what’s in the extremely terse communication.

Wednesday’s email doesn’t say how long customers’ personal details were disclosed or precisely where on the site the disclosure took place. It’s also not clear how many customers received the email and whether a geographic location, specific purchase, or other common thread caused certain customers to be affected.

Below is the text of an email sent to one Amazon customer: