Otelier
MEDIUM RISKData breach — July 2024
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.
search Check if you were affected — freeData exposed in this breach
What happened in the Otelier data breach?
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.
The exposed data included 7 types of personal information. Learn more about what a data breach means for you.
Quick answer — was Otelier hacked?
Yes. Otelier was breached in July 2024. The breach exposed 436,855 records including email addresses, names, partial credit card data. This breach has been independently verified. If your email was involved, your data may still be at risk today. Check if you were affected.
Why was the Otelier breach so dangerous?
The Otelier breach exposed 436,855 records — that is a large number of compromised accounts. The combination of email addresses, names, partial credit card data makes this a medium-risk breach that should be addressed promptly.
Don't wait to find out — check if your email was exposed in this breach now.
What data was stolen in the Otelier breach?
Email addresses — used for phishing attacks and credential stuffing against your other accounts
Names — used to build profiles and target you with personalised scams
Partial credit card data — can be used for direct financial fraud and unauthorised transactions
Phone numbers — enables SIM swapping attacks and targeted SMS phishing scams
Physical addresses — combined with other data, used for identity theft and physical fraud
Purchases — may be combined with other breach data to build a profile for targeted attacks
Travel plans — may be combined with other breach data to build a profile for targeted attacks
Is the Otelier breach still dangerous in 2026?
Yes. Stolen data from the Otelier breach remains dangerous years after the incident. Research shows that over 65% of stolen credentials from older breaches have never been changed by the account holders. Attackers routinely compile data from multiple breaches to build complete profiles, and credentials from 2024 are still actively used in credential stuffing attacks today.
Personal information like email addresses, phone numbers, and dates of birth never expire. Even if you changed your Otelier password, the other exposed data can be combined with information from other breaches to target you. Learn more about how long stolen data stays dangerous.
Frequently asked about the Otelier breach
Approximately 436,855 user records were exposed in the Otelier breach in July 2024.
Yes. Leaked credentials are actively used in credential stuffing attacks years after a breach. If you reused your Otelier password elsewhere and haven't changed it, those accounts remain at risk today.
Enter your email in the free checker on EmailLeaked. We scan 12 billion+ breach records including the full Otelier dataset and tell you instantly whether your email was exposed and what data was taken.
Change your Otelier password immediately, change any other account where you used the same password, enable two-factor authentication on all important accounts, and monitor for phishing emails over the next 90 days.
Who was affected by the Otelier breach?
The Otelier data breach affected approximately 436,855 users who had accounts with the service. While not the largest breach on record, it still represents a significant number of compromised accounts in our database of 970+ known breaches.
If you ever created an account with Otelier or used their services, your data may have been included in this breach. Check your email now to find out. You can also read our guide on what to do immediately after a data breach.
If your email was in the Otelier breach
Change your Otelier password immediately
Go to Otelier and change your password right now. Use a strong, unique password that you have never used anywhere else.
Change any account sharing that password
If you used the same password on other sites, change it on every one of them. Attackers test stolen credentials on hundreds of popular sites within hours.
Enable two-factor authentication
Turn on 2FA on Otelier and every important account. Even if your password is known, attackers cannot get in without the second factor.
Check your other accounts for this breach
Run a full email check to see every breach your email appears in — not just this one.
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