Best Hotels Spain Listed by qilin Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On December 18, 2025, the ransomware group qilin listed Best Hotels Spain on its data-leak site, claiming to have exfiltrated internal files from the company. Public details remain limited to this listing; the number of individuals affected, the precise volume of data, and any confirmation of the claims have not been disclosed by the organisation or independent investigators.

Such listings have become a recurring feature of the current ransomware landscape, where groups combine encryption with the threat of publication to pressure victims. The incident underscores how even sector-specific operators can find their internal records surfaced on criminal platforms with little immediate public clarity on scope or verification.

Inside the incident

Best Hotels Spain appeared on the qilin leak site on the reported date. The group stated that internal files had been taken during a ransomware operation. No further technical details, such as the initial access method, duration of access, or exact file categories, have been made public. The number of people potentially affected is listed as unknown.

Who is qilin?

Qilin is a ransomware operation that has been publicly tracked for several years. The group typically deploys encryption on victim networks and exfiltrates data beforehand, then uses a dedicated leak site to post samples or directories when negotiations fail. Its activity follows patterns seen across multiple ransomware collectives: selective targeting of mid-sized and larger organisations, use of double-extortion tactics, and periodic rebranding or infrastructure shifts to maintain operations.

About Best Hotels Spain

Best Hotels Spain operates within the hospitality sector, managing accommodation and related services for guests. Organisations of this type routinely maintain systems that store reservation records, operational documents, and administrative files. A breach affecting such an entity can expose both business processes and information linked to individuals who have interacted with the company.

What data was at risk

The only detail released is that internal files were claimed to have been exfiltrated. The exact categories of information contained in those files have not been disclosed. Hospitality companies commonly hold guest names, contact details, booking histories, and payment-related records, yet it is not confirmed whether any of these data types were present in the material referenced by the listing.

The real-world impact

Individuals whose information appears in internal hotel files could face risks of account takeover or targeted fraud if the material is later distributed. For the organisation, the incident may involve operational disruption, costs associated with investigation and recovery, and reputational effects within its customer base. At present, the scale of any downstream harm remains unknown because the contents and reach of the claimed data have not been verified publicly.

If your data was in this claimed breach

Monitor bank and loyalty accounts for unusual activity and consider placing fraud alerts with credit agencies. Use unique, strong passwords for any services connected to the hotel and enable multi-factor authentication where available. Readers can run a free exposure scan of their email address against known breach data sets to check for prior appearances of their information in public listings.

AICompiled with AI assistance from public sources and published under our editorial standards.