QuinStreet Data Breach

What happened?

In approximately late 2015, the maker of "performance marketing products" QuinStreet had a number of their online assets compromised. The attack impacted 28 separate sites, predominantly technology forums such as flashkit.com , codeguru.com and webdeveloper.com ( view a full list of sites ). QuinStreet advised that impacted users have been notified and passwords reset. The data contained details on over 4.9 million people and included email addresses, dates of birth and salted MD5 hashes.

When did it happen?

The breach date in the public record is December 14, 2015. The record was added to the catalogue on December 17, 2016 and last updated there on December 17, 2016.

What information was reported as exposed?

• Dates of birth
• Email addresses
• IP addresses
• Passwords
• Usernames
• Website activity

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 QuinStreet or used quinstreet.com around December 14, 2015. 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.