A cyber-attack on a hotel reservation system has exposed the personal data of thousands of guests who stayed at upscale Finnish hotels.
News of the security incident, which has impacted at least five hotels, was first reported by Finnish news agency MTV on Tuesday.
Between February 10 and 14, cyber-attackers exploited a vulnerability to hack into the company’s computer system that supplies the booking system to multiple hotels across Finland. After the hack was discovered on April 9, the vulnerability was patched.
Nordic Hotels & Resorts disclosed that the personal data of 15,497 of its customers had been compromised owing to the attack on the booking system used by two of its Helsinki-based hotels – the boutique F6 Hotel…