Japan Airlines Data Breach History

This page tracks the Japan Airlines data breach history and cybersecurity incidents affecting Japan Airlines (Japan). BreachHistory currently indexes 3 publicly disclosed or catalogued incidents spanning 2014 through 2026, with approximately 1.6 million 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 Japan Airlines 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 Japan Airlines Data Breaches

The largest indexed incidents include the 2014 — Japan Airlines: Data breach reported, 800K records, the 2014 — Japan Airlines: Oct 2014: Japan Airlines confirmed the possible…, and the 2026 Japan Airlines — Same-Day Baggage Delivery incident. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by Japan Airlines or a regulator. Below is the list of large data breaches:

• 2014 2014 — Japan Airlines: Data breach reported, 800K records — about 800.0K records exposed · Catalogued incident
• 2014 2014 — Japan Airlines: Oct 2014: Japan Airlines confirmed the possible… — about 750.0K records exposed · Catalogued incident
• 2026 2026 Japan Airlines — Same-Day Baggage Delivery incident — about 28.0K records exposed · Catalogued incident

What Information Was Exposed?

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

Japan Airlines Data Breach 2026

At the time of this update, BreachHistory catalogues 1 2026 incident related to Japan Airlines. Most recent entry: 2026 Japan Airlines — Same-Day Baggage Delivery incident. 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 Japan Airlines 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 Japan Airlines 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.