A data breach involving leaking of guests as well as reservations details has affected over 100 hotels in Netherlands and some in Belgium as well as Ireland. With access to real reservation data hackers are contacting the hotel customers with phishing emails. As the messages contain real details the former are very convincing. The hackers are pressurizing hotel clients to make additional payments.

The data consists of actual names, contact information as well as reservation details. As per reports hundreds of customers have been already targeted leading to monetary losses. Hospecs a company managing multiple hotels including the affected ones acknowledged the breach and informed broadcaster NOS that the stolen details include customer contact data as well as respective arrival and departure dates.

Cybercriminals leveraged a flaw in shared booking software and got access to data from the numerous hotels run by Hospecs. As per the Managing Director of Hospecs, Tim Vissers, the hackers obtained access via property management software, channel management software or booking management applications employed by multiple hotels. The incident demonstrates how a sole vulnerability in third-party software affects multiple independent units. Contemporary bookings usually go through multiple systems ranging from property management software, booking engines, channel managers as well as central reservation portals.

Hospecs has carried out numerous remedial measures/actions. One is examining impacted hotels, software as well as the precise scope of leaked information. Another is making a dedicated form for impacted hotels to communicate details and the state of affected infrastructure. Another timely action was to release public warnings on LinkedIn as well as media.

Hospecs’s opinion is that this is not a security incident at the individual hotel level. The vulnerability is believed to be in the shared software and/or systems employed by multiple hotels. Currently the incident is being investigated.

Customers are instructed to authenticate payment demands directly with respective hotels prior to clicking on links or revealing payment information. Go to the official hotel website and use the phone number or email address present there.

FAQs

1. What happened in the recent Dutch hotel data breach?

A major data breach affected more than 100 hotels across the Netherlands, as well as some hotels in Belgium and Ireland. Cybercriminals gained access to guest information and reservation details, which are now being used in targeted phishing campaigns.

2. What customer information was exposed in the hotel data breach?

The leaked data includes guests’ names, contact information, arrival and departure dates, and reservation details. This information enables attackers to create highly convincing phishing messages.

3. How are hackers exploiting the stolen hotel reservation data?

Hackers are sending phishing emails and messages that contain real booking details. They often pressure guests to make additional payments or provide financial information, making the scams appear legitimate.

4. What caused the breach affecting multiple hotels?

According to Hospecs, the breach was linked to a vulnerability in shared hotel management software, such as property management systems, channel managers, or booking management applications used by multiple hotels.

5. How can hotel guests protect themselves from phishing attacks after the breach?

Guests should verify any payment requests directly with their hotel before clicking links or sharing payment details. It is recommended to contact the hotel using the official phone number or email address listed on the hotel’s website rather than responding to unsolicited messages.

SOURCES:-

https://cyberinsider.com/over-100-dutch-hotels-hit-by-breach-exposing-guest-reservation-data/

https://www.dutchnews.nl/2026/06/mass-data-breach-on-over-100-dutch-hotels-hits-guests/

https://captaincompliance.com/news/cyberattack-on-netherlands-hotel-operator-hospecs-major-data-breach-affects-over-100-hotels-and-thousands-of-guests/

https://www.techzine.eu/news/security/141806/dozens-of-dutch-hotels-affected-by-data-breach/

https://www.galaxywarden.com/blog/breach/europe-hotels-data-breach-june-2026