Check-in terminals used by thousands of hotels leak guest info

Ariane Systems self check-in terminals used by thousands of hotels contain a kiosk-mode bypass: specific inputs (e.g., a single quote or six dashes) can hang the Ariane Allegro Scenario Player, allow terminating the process, expose the Windows desktop, and thereby reveal guest PII and enable provisioning of RFID room keys. The flaw affects terminals deployed across ~3,000 hotels (500,000+ rooms); the researcher reported it to the vendor but an authoritative fixed version and remediation details are unclear—operators are advised to isolate kiosks and contact the vendor.