KnownCircle

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.

Compromised Data

Email addresses
Email messages
Genders
Names
Passwords
Phone numbers
Physical addresses

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:

    2 million

  • Breach Occurred:

    April 2016

  • Added to HIBP:

    17 Nov 2018

Recommended Actions

Change Your Password

If you haven't changed your KnownCircle password since 2016, 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