Loading
Loading
We use strictly necessary cookies to run this site, and analytics cookies to understand how it's used. See our Privacy Policy for details.
Breach occurred 2016-04-12Verifiedknowncircle.com
What happened
In approximately April 2016, the "marketing automation for agents and professional service providers" company KnownCircle had a large volume of data obtained by an external party. The data belonging to the now defunct service appeared in JSON format and contained gigabytes of data related to the real estate and insurance sectors. The personal data in the breach appears to have primarily been used for marketing purposes, including logs of emails sent and tracking of gift cards. A small number of passwords for KnownCircle staff were also present and were stored as bcrypt hashes.
Data exposed
Frequently asked questions
The KnownCircle data breach occurred on April 12, 2016. It was added to Have I Been Pwned's breach catalog on November 17, 2018.
1,957,600 accounts were affected by the KnownCircle data breach, according to Have I Been Pwned's records.
The KnownCircle breach exposed the following data types: Email addresses, Email messages, Genders, Names, Passwords, Phone numbers, Physical addresses.
Yes. Have I Been Pwned has verified the KnownCircle breach, meaning there's confirmed evidence the exposed data is genuine and tied to real accounts.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the KnownCircle breach, or any other known breach — the tool never stores what you search.
Our free Email Breach Checker tells you whether a specific email address has surfaced in this breach — or any other known breach — without ever storing what you search.
Check your email →Talk to us about this
We help organizations find and fix the gaps that lead to a breach, before they do.