Public Homepage

Change in anti-spam vendor: What you can expect

TransUnion is changing our anti-spam vendor from McAfee/CDW anti-spam solution to Proofpoint. We would like to inform you that the transition to Proofpoint is moving forward, and implementation is tentatively planned for early-mid December.

What you need to know
There is the possibility that inbound and outbound flow may be moderately affected during implementation, however, every effort is being made to ensure a seamless transition. Stay tuned for additional communications when available.

If you have any questions, please contact the Global Collaboration Team at

Important notice for TransUnion Net Access (TUNA) Customers

Because many industry-wide systems will no longer support the SHA-1 TUNA digital certificate starting January 1, 2017, we recommend you download and install the SHA-2 digital certificate. If you are an existing TUNA customer and have not yet downloaded the new SHA-2 digital certificate, please see the Implementation Instructions for the SHA-2 Upgrade (please log in to access the instructions).

For more information about TUNA, see the TransUnion Net Access Resources page.

SSL 3.0 no longer supported by TransUnion

TransUnion no longer supports Secure Sockets Layer (SSL) 3.0. The preferred Internet Browser versions include:
  • Internet Explorer (IE), versions 7-11(v11 highly preferred)
  • Google Chrome, versions 1-40
  • Mozilla Firefox, versions 1-36


Receive answers to the most commonly asked technical questions.

Troubleshooting Guide

Access tips to help resolve common transaction-based error conditions.

Legal and Regulatory Announcements

Stay abreast of the latest legal, regulatory and Fair Credit Reporting Act (FCRA) requirements that may affect your business.