Was your data in the Otelier breach?

Otelier (otelier.com) suffered a data breach in 2024 that exposed around 436,855 accounts. If you had an account, some of your personal data may be circulating in leaked databases. The fastest way to know is to check your own email — free, in about 30 seconds, no password required.

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 details sourced from Have I Been Pwned, the industry-standard breach database. Risk analysis by Nullivo.

What was exposed, and why it matters

Not all breaches carry the same risk — what matters is which fields leaked. Here is what the Otelier breach exposed and what each item actually enables:

Also listed in this breach: Email addresses, Names, Partial credit card data, Phone numbers, Physical addresses, Purchases, Travel plans.

What to do if you were affected

These steps are ordered for this specific breach — the most urgent action given what leaked comes first.

1. Payment or bank details: Contact your bank, ask them to monitor or reissue the card, and check statements for small “test” transactions.
2. Home addresses: Get your address removed from data brokers — they re-list roughly every four months, so this needs repeating.
3. Phone numbers: Move two-factor authentication off SMS to an authenticator app or passkey, and add a port-out PIN with your mobile provider.
4. Names and usernames: Search your usual username to see what else it exposes, and use distinct handles for sensitive accounts.
5. Email addresses: Treat any message referencing this service with suspicion, and never act on links in unexpected emails.
6. Check whether your own email appears in this breach — run a free scan to confirm before you spend time on the steps above.

This breach put your details on data-broker sites

Because Otelier exposed home addresses, this is one of the breaches that feeds people-search and data-broker sites. Those sites scrape leaked databases, combine them with public records, and republish the result as a searchable profile — which is how a single breach turns into a permanent public listing. Removal works, but brokers typically re-list within about four months, so it has to be repeated.

See our broker-by-broker removal guides →

How urgent is this now?

This data has been circulating for around 2 years, which means it has been copied, combined with other leaks and indexed by search tools many times over.

Remember: a breach can't be "un-leaked" — once a database is out, it exists in countless copies. The goal is to make the leaked data useless: change what can be changed, lock down what can't, and remove what has been republished.

Frequently asked questions

Breaches that exposed similar data

If the Otelier breach affected you, these breaches exposed comparable information — worth checking too, since leaked datasets are routinely combined.

• Was your data in the Canada Goose breach? (2025, ~581,877 accounts)
• Was your data in the Kemper breach? (2026, ~269,299 accounts)
• Was your data in the Viva Air breach? (2022, ~932,232 accounts)
• Was your data in the PayHere breach? (2022, ~1,580,249 accounts)
• Was your data in the Guns.com breach? (2021, ~375,928 accounts)
• Was your data in the Mytheresa breach? (2026, ~84,108 accounts)

See all breaches we cover →