InterContinental Hotels Group, also known as IHG Hotels & Resorts, has confirmed it was hit by a cyberattack that downed its booking systems and mobile apps.
U.K.-headquartered IHG operates some of the world’s largest hotel chains, including the Holiday Inn, Crown Plaza and Regent hotels. The company runs more than 6,000 hotels in more than 100 countries, including over 3,000 in the United States, and serves more than 150 million guests each year.
In a Tuesday filing with the London Stock Exchange on Tuesday, the company confirmed that “parts of the company’s technology systems have been subject to unauthorized activity.”
IHG declined to confirm the nature of the incident when asked by TechCrunch, but noted in the filing that “it’s working on restoring impacted systems,” suggesting a possible ransomware attack — a theory backed by …