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Air France-KLM alerts customers of possible data breach

Franco-Dutch airline company Air France-KLM has begun contacting its customers, warning them of a possible breach of customer data.

user icon David Hollingworth
Tue, 10 Jan 2023
Air France-KLM alerts customers of possible data breach
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The emails were sent to members of the airline’s Flying Blue frequent flyer program, and while the company has so far made no official announcements via its own press pages, customers have been sharing the notification online.

Jeroen Burgerhout, a Microsoft consultant, shared the notification on Twitter, where several other Flying Blue customers commented that they too had received the alert email.

“Our security operations teams have detected suspicious behaviour by an unauthorised entity in relation to your account. We have immediately implemented corrective action to prevent further exposure of your data,” the email says.


It goes on to list the type of data that may have been leaked, which includes names, phone numbers, emails, and flight details, as well as Flying Blue member numbers. It also declares that no credit card data was compromised.

The official KLM airlines account responded to some of the Twitter posts asking for clarification.

“Could you kindly send me a DM including the relevant picture so I can investigate this further for you?” reads one tweet from KLM.

KLM later confirmed the breach, though the amount of customers affected is still unknown.

“I've checked this for you and rest assured that the attack was blocked in time and no miles were charged,” one KLM tweet reads. “I do however invite you to change your Flying Blue-password via the Flying Blue-website.”

Flying Blue covers not just Air France and KLM — which merged in 2004 but also customers of Transavia, Aircalin, Kenya Airways and TAROM. The company is headquartered at Charles de Gaulle Airport near Paris.

David Hollingworth

David Hollingworth

David Hollingworth has been writing about technology for over 20 years, and has worked for a range of print and online titles in his career. He is enjoying getting to grips with cyber security, especially when it lets him talk about Lego.

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