Originally Posted by
CJKatl
We did not originally add the passport numbers but shortly after making the reservation received an email from the hotel manager indicating those numbers needed to be added or the reservation would be canceled, and if the passports presented at check-in had different numbers there would be an issue.
Understood. I had Iberia ask for my passport to confirm identify for my Avios account. I sent them the info but blacked out the passport number for security reasons. They responded that I had to give them the passport number or they would close my account. I though that was pretty bizarre considering it was all after the GDPR was implemented as I can't think of any reason they need my passport number for an Avios account. As for the hotel, the probably need it under Czech law but I don't like providing that information by email as it is highly insecure.
I also noted that my MR account doesn't contain my full birthday ... only month/day.