QuinStreet

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.

Compromised Data

Dates of birth
Email addresses
IP addresses
Passwords
Usernames
Website activity

Recommended Actions

Change Your Password

If you haven't changed your password on this service since the breach, do so immediately.

Enable Two-Factor Authentication

If 2FA is supported, add an extra layer of security to your account.

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Breach Overview

  • Affected Accounts:

    4.9 million

  • Breach Occurred:

    December 2015

  • Added to HIBP:

    17 Dec 2016

Recommended Actions

Change Your Password

If you haven't changed your QuinStreet password since 2015, do so immediately.

Enable Two-Factor Authentication

Add an extra layer of security to your account.

1Password

Use 1Password to generate and store strong, unique passwords for all your accounts.

Try 1Password