> In the hours before we took ChatGPT offline on Monday, it was possible for some users to see another active user’s first and last name, email address, payment address, the last four digits (only) of a credit card number, and credit card expiration date

This is a lot of sensitive data. It says 1.2% of ChatGPT Plus subscribers active during a 9 hour window, which considering their user base must be a lot.