QuinStreet data breach: 4.9M accounts exposed
Severity: high · Patch status: no-fix-needed · Since 2016-12-17
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. Exposed data: dates of birth, email addresses, ip addresses, passwords, usernames, website activity. The breach dates from Dec 14, 2015; Have I Been Pwned loaded it on Dec 17, 2016.
What to do
- If you had a QuinStreet account, change its password and the password of any other account that reused it.
- Turn on multi-factor authentication wherever it is offered.
- Check whether your addresses are in this breach at https://haveibeenpwned.com.
- Expect targeted phishing that quotes the leaked details; verify any unexpected contact out of band.
Sources
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