Otelier Data Breach

What happened?

In July 2024, a threat actor gained access to the hotel management platform Otelier and retrieved customer data from well-known hotel brands including Marriott, Hilton, and Hyatt . The data included 437k customer email addresses (a further 868k generated email addresses from the booking.com and Expedia platforms were not loaded into HIBP), names, physical addresses, phone numbers, booking information related to travel plans, purchases recorded by the platform and in a small number of cases, partial credit card data.

When did it happen?

The breach date in the public record is July 1, 2024. The record was added to the catalogue on January 18, 2025 and last updated there on January 18, 2025.

What information was reported as exposed?

• Email addresses
• Names
• Partial credit card data
• Phone numbers
• Physical addresses
• Purchases
• Travel plans

These are incident-level categories. The record does not prove that every category was exposed for every affected person.

Who may be affected?

This record may be relevant to people who had an account or other relationship with Otelier or used otelier.com around July 1, 2024. A catalogue entry does not establish that every customer was affected or that every listed data category applied to each person. Compare the record with an official notice addressed to you.

What should you do?

Choose actions that match the information involved. If you find signs that someone is using your identity, the Federal Trade Commission provides a personal recovery plan at IdentityTheft.gov.