Marriott Concedes 5 Million Passport Numbers Lost to Hackers Were Not Encrypted
The overall number of guests affected by the hacking, in which Chinese intelligence is the leading suspect, declined to 383 million. But the passport data is critical to intelligence agencies. https://www.nytimes.com/2019/01/04/us/politics/marriott-hack-passports.html
Marriott Concedes 5 Million Passport Numbers Lost to Hackers Were Not Encrypted

The overall number of guests affected by the hacking, in which Chinese intelligence is the leading suspect, declined to 383 million. But the passport data is critical to intelligence agencies.

The New York Times