2011 — Marriott International: An unknown number of customer payment slips were…
Data compromised
Personal information
Technical writeup
An unknown number of customer payment slips were lost during shipping. Timeshare maintenance fee payment slips were processed by a bank and shipped back to Marriott. The box of slips arrived damaged and had some of the slips missing. Timeshare owners' names, credit card numbers and expiration dates, and addresses were exposed.
Root cause
Physical theft