Otelier data breach hits Marriott hotels
SpilloverSpillover from the Otelier incident · View original incident →Hotels of Marriott International, Inc. were affected by the Otelier data breach. Hilton hotels were also affected by the same incident.
Key facts
- Affected organisation
- Marriott
- Original incident
- Otelier breach exposes data of around 500,000 hotel guests
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- Not confirmed
- Cause / method
- Fallout from the Otelier data breach
- Location
- United States
If your data was exposed
- Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.
Timeline
- It emerged that Marriott and Hilton hotels had been affected by the Otelier data breach.
Original incident
This is spillover from the Otelier incident.
Otelier breach exposes data of around 500,000 hotel guests
500kImpact: Information and booking details of around 500,000 hotel guests
Otelier was breached, exposing hotel guest information and booking details. The scale was later reported as around 500,000 guests, and information related to Marriott and Hilton hotels was also among the data exposed.
Related reports: 5 · last report →
1 related reports
Other incidents at Marriott
Marriott International data breach affects up to 5.2 million guests
5.2mImpact: Data of up to 5.2 million guests
Marriott International confirmed a data breach affecting up to 5.2 million guests. The date of the incident, the data exposed, the cause and any further response have not been confirmed.
Read on Sophos ↗Marriott Starwood breach exposes customer passport data and more
Impact: Data including customer passport information
A data breach occurred at Marriott's Starwood in 2018, and the leak of customers' passport information went undetected for four years. Marriott admitted that for five years it had wrongly claimed that encryption was in use at the time. It later agreed to pay $52 million and strengthen security to settle investigations into the breach, and in 2025 it won an order from a US appeals court voiding a related class action.
Related reports: 14 · last report →
The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.