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MonitoringIndianaFiled July 9, 2026

Understanding your Frontier Airlines data breach notification letter

If a Frontier Airlines letter arrived in your mailbox, here is what it means, why you received it, and the free steps you can take right now.

Why you received this letter

Frontier Airlines reported a data security incident to Indiana regulators on July 9, 2026. This breach exposed customer personal and financial details, including names, dates of birth, passport numbers, and payment card information. Individuals who received a notification should review their accounts and consider protective measures.

Information the filing reports as involved

  • Full Name
  • Date of Birth
  • Mailing Address
  • Email Address
  • Phone Number
  • Passport Number
  • Known Traveler Number
  • Payment Card Information
  • Frequent Flyer Account Details

What to do after the letter

  1. Confirm the notice is genuine

    A legitimate Frontier Airlines notice references the specific incident reported to the Indiana Attorney General and describes which categories of your information were involved. Compare the letter against the public filing before acting on any links or phone numbers it contains.

  2. Keep the letter — it is your proof of connection

    The notification letter is the document that ties your personal information to this incident. Keep the original and photograph it. If you later request a case review, this letter is the strongest evidence that you were among the affected individuals.

  3. Protect your accounts and credit

    Depending on what was exposed, consider a free credit freeze with all three bureaus, new passwords for reused credentials, and monitoring of financial statements. These steps are free and do not require you to wait for anyone's permission.

  4. Check the record against the public filing

    You can verify the Frontier Airlines incident against the filing reported to the Indiana Attorney General. This registry summarizes what was filed; it does not provide legal advice.

This page summarizes a data breach reported to the Indiana Attorney General for informational purposes. DataBreachInformation.com is a neutral reference registry and does not provide legal advice.

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