This is Comcast's publication on the October 2023 leak of customer information. The most relevant section is copy/pasted below:
> What Information Was Involved? On December 6, 2023, we concluded that the information included
usernames and hashed passwords. For some customers, other information was also included, such as
names, contact information, last four digits of social security numbers, dates of birth and/or secret
questions and answers. However, our data analysis is continuing, and we will provide additional notices
as appropriate.
> What Information Was Involved? On December 6, 2023, we concluded that the information included usernames and hashed passwords. For some customers, other information was also included, such as names, contact information, last four digits of social security numbers, dates of birth and/or secret questions and answers. However, our data analysis is continuing, and we will provide additional notices as appropriate.