2020 IndiGo (InterGlobe Aviation) — server intrusion; internal document leak risk disclosed
Data compromised
Internal operational documents per airline release; passenger database scope unclear
Technical writeup
IndiGo told press some servers were hacked in December 2020, with possible internal document exfiltration to public sites, while restoring operations quickly—passenger PII counts were not standardized in the opening statements.
Root cause
External intrusion into airline IT estate (detailed chain not public)