Airline company Air France-KLM announced it has suffered a data breach, data belonging to customers of its loyalty program Flying Blue were exposed.

The Flying Blue loyalty program is used by other airlines, including Aircalin, Kenya Airways, TAROM, and Transavia. The company did not provide details about the security breach, it is not clear if threat actors had access to its infrastructure.

The company notified impacted customers of suspicious activity related to their accounts, and the notice sent to the customers informed them that some of their personal information might have been exposed.