Personal Data Leak Monitor

QuinStreet data breach

4.91M accounts from QuinStreet (quinstreet.com) were exposed in this breach. Besides email addresses, it included passwords, which makes it a high-risk breach.

Breach date
December 14, 2015
Accounts
4,907,802
Added to the database
December 17, 2016

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What leaked

Dates of birthEmail addressesIP addressesPasswordsUsernamesWebsite activity

What to do now

  1. Please change that password, and anywhere you reused it
  2. If your birthday is a PIN, kindly change it
  3. Do not tap links in emails claiming to be that service
  4. Verify you have not reused that login anywhere

Tools that help with this breach

1PasswordPaidVisit the official site →(opens in a new tab)YubiKeyPaidVisit the official site →(opens in a new tab)

About this breach

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.

Source: Have I Been Pwned (CC BY 4.0)

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