Many IHG-branded locations are independently owned and operated franchises, and certain of these franchisee operated locations in the Americas were made aware by payment card networks of patterns of unauthorized charges occurring on payment cards after they were legitimately used at their locations.  To ensure an efficient and effective response, IHG hired a leading cyber security firm on behalf of franchisees to coordinate an examination of the payment card processing systems of franchise hotel locations in the Americas region.

https://www.ihg.com/content/us/en/customer-care/protecting-our-guests/california-residents