Breach date: 2024-07-01. Added to this index: 2025-01-18. Accounts affected: about 437K. Domain: otelier.com.
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.
Breach data sourced from Have I Been Pwned, used under CC BY 4.0. Additional breach metadata provided by XposedOrNot. DataExposed is an independent service and is not affiliated with or endorsed by either.
What was exposed
Email addresses: The email address you used to register or log in. It is the most common field in breaches because it doubles as your username on most sites.
Names: Your first name, surname and sometimes middle name or initials, as you gave them when you signed up. It appears in almost every breach because nearly every account asks for it.
Partial credit card data: Fragments of a payment card rather than the full number, typically the first six or last four digits, the card brand, the expiry date or the cardholder name.
Phone numbers: Your mobile or landline number, collected at signup for contact, delivery updates, marketing and two-factor codes.
Physical addresses: Your residential, postal, billing or delivery address, stored by retailers, utilities, banks, government services and almost any company that sends you something.
Purchases: Records of items or services you bought, often with order numbers, prices, dates, delivery addresses and the store or seller involved.
Travel plans: Upcoming or past itineraries, including flight numbers, hotel bookings, booking references, travel dates, destinations and passenger names.
What to do now
Check whether your own address is in this dataset with the free email breach check.
Review the accounts connected to this service and turn on two-factor authentication.
Turn on two-factor authentication on your email account first, because it is the reset path for everything else.
Treat calls and messages that quote real details about you as hostile until you verify them another way.
Frequently asked questions
What data was leaked in the Otelier breach?
The Otelier breach exposed Email addresses, Names, Partial credit card data, Phone numbers, Physical addresses, Purchases, Travel plans. About 437K accounts were affected.
Was I affected by the Otelier breach?
Run the free email breach check with the address you used on that service. It will tell you whether your address appears in this dataset.
What should I do about the Otelier breach?
Treat any message that quotes details from this breach as suspicious, turn on two-factor authentication, and consider removing your details from people-search sites if your address or phone was included.