Marriott / Starwood guest data breach
Chinese state-attributed operators sat undetected on Starwood's guest reservation database from 2014, surviving Marriott's 2016 acquisition. Disclosed 2018: 500 million guest records exposed, including 5.25 million unencrypted passport numbers.
- Victim
- Marriott International / Starwood Hotels & Resorts
- Loss
- $200.0M
- Records
- 500.0M