2023 Sirena-Travel Leonardo — 664M flights, 3.5B records
Data compromised
Names, passports, phones, flight data
Technical writeup
Muppets group breached Leonardo. 664M flights (2007–2023), ~3.5B passenger phone records. Names, passports, birth certs, routes, tariffs. Executives criminally charged. DDoS also hit airlines.
Root cause
Hacking; Muppets group