Delta Air Lines Data Breach History

This page tracks the Delta Air Lines data breach history and cybersecurity incidents affecting Delta Air Lines (United States). BreachHistory currently indexes 3 publicly disclosed or catalogued incidents spanning 2017 through 2024, with approximately 882 thousand records reported as exposed across all indexed events. These totals may include overlapping datasets or third-party estimates and should not be interpreted as unique affected users.

The Delta Air Lines breach timeline includes major data breaches, cyber attacks, data leaks, credential exposures, API abuse, and other security incidents. Each incident provides details on the estimated records exposed, attack method, affected data types, and supporting public sources. Currently, 0 incidents are company-confirmed.

Largest Delta Air Lines Data Breaches

The largest indexed incidents include the 2017 — Delta Air Lines: Information on this security breach is provided by… and the 2024 Third-party MOVEit breach — 57k employee records. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by Delta Air Lines or a regulator. Below is the list of large data breaches:

• 2017 2017 — Delta Air Lines: Information on this security breach is provided by… — about 825.0K records exposed · Catalogued incident
• 2024 2024 Third-party MOVEit breach — 57k employee records — about 57.0K records exposed · Catalogued incident

What Information Was Exposed?

Depending on the incident, exposed data may include email addresses, names, physical addresses, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.

Delta Air Lines Data Breach 2026

At the time of this update, no Delta Air Lines data breach has been catalogued for 2026. New incidents are added as official disclosures, regulatory filings, or credible cybersecurity reports become available.

What To Do If You Were Affected

If you believe your account may have been involved in a Delta Air Lines data breach, change any reused passwords, enable multi-factor authentication (MFA), monitor your account for suspicious activity, and be cautious of phishing emails or fake breach notifications.

This Delta Air Lines breach history is maintained by BreachHistory using public disclosures, regulatory filings, security research, and clearly labelled third-party claims. For the complete breach timeline, records exposed, incident details, and AI Breach Risk Score, explore the sections on this page.