arcona Hotels & Resorts

arcona Hotels & Resorts, also known as arcona Management, is a hospitality organization that operates hotels and resorts. Its headquarters is situated in Germany. The organization runs a customer loyalty program branded as myarcona. Guests can book accommodations through the company’s official website. Email communication serves as a standard channel for the organization’s correspondence with guests and partners.

On May 23, 2025, arcona Hotels & Resorts detected technical irregularities within its IT systems. After an initial review by its IT service provider, the organization temporarily disconnected its hotel locations from central IT services to limit potential damage. Despite this disconnection, hotel operations continued without restriction throughout the incident. Reservations made via the website and the myarcona customer club remained unaffected and continued without restriction. Email communication also proceeded without interruption during the same period.

The organization notified the relevant authorities about the technical irregularities. arcona Hotels & Resorts engaged the IT forensics firm ResponseOne GmbH to conduct analysis and remediation. The company stated that it would provide further updates as the investigation progressed. Inquiries related to the incident were directed to a designated email address established by the organization. The incident was publicly communicated via a notice on the organization’s website at https://arcona.de/de/hinweis.