MC2 Data Data Breach

What happened?

In August 2024, data aggregator MC2 Data left a database publicly accessible without a password which was subsequently discovered by a security researcher . The breach exposed the personal information of 2.1M subscribers to the service which was marketed under a series of different brand names . The data included email addresses, names and salted SHA-256 password hashes.

When did it happen?

The breach date in the public record is August 18, 2024. The record was added to the catalogue on December 15, 2024 and last updated there on December 15, 2024.

What information was reported as exposed?

• Email addresses
• Names
• Passwords

These are incident-level categories. The record does not prove that every category was exposed for every affected person.

Who may be affected?

This record may be relevant to people who had an account or other relationship with MC2 Data around August 18, 2024. A catalogue entry does not establish that every customer was affected or that every listed data category applied to each person. Compare the record with an official notice addressed to you.

What should you do?

Choose actions that match the information involved. If you find signs that someone is using your identity, the Federal Trade Commission provides a personal recovery plan at IdentityTheft.gov.