Banking

High

investigation open

Updated 24 days ago

Trans Union LLC Data Breach

▼ Key takeaways

•Reports suggest a potential breach involving Trans Union LLC.
•Discovered on July 28, 2025.
•Possible data exposed: Name, Date of Birth, Social Security Number, Billing Address, Email Address, Phone Number, Customer Support Ticket/Message Content.
•Affects individuals in: Maine.
•Confirmation level: Confirmed by regulators.

Breach confirmed

The Trans Union LLC breach is confirmed. If you may be affected, add your details below and we will take it from there.

Detailed summary

Trans Union LLC disclosed a data breach in late August 2025, which occurred on July 28, 2025. The incident stemmed from a compromise of a third-party application used for U.S. consumer support operations. TransUnion clarified that its core credit databases and credit reports were not affected.

Approximately 4,461,511 U.S. individuals were affected. The exposed data included names, dates of birth, Social Security numbers, billing addresses, email addresses, phone numbers, and customer support ticket and message content. A breach notification letter was filed with the Maine Attorney General.

Additional details about the full scope of the breach and the specific timeline for consumer notifications may continue to emerge.

Data possibly involved

Name
Date of Birth
Often used in combination with other data for identity theft
Social Security Number
Can be used to open fraudulent accounts and file false tax returns
Billing Address
Could be combined with other data for identity theft
Email Address
Increases risk of phishing attacks and account takeovers
Phone Number
May be used for SIM swapping or targeted scam calls
Customer Support Ticket/Message Content

Company Response Timeline

Response Grade

Took over 180 days or has not yet notified consumers

Breach Occurred

Jul 28, 2025

Company Discovered

Jul 28, 2025

Regulator Notified

Aug 31, 2025

Consumers Notified

Unknown

0 days to discover

Breach Verification Status

Reports Only

Complete

Initial dark web reports of potential breach

Company Confirmed

Complete

Company has acknowledged the breach

Regulator Confirmed

Current

Confirmed by regulatory authorities

Note: Breach verification can take time. Information may evolve as more details become available from companies and regulators.

Case Status:

Investigation Open

We're actively investigating this case and seeking affected individuals.

Were you affected? Submit your information below.

Were You Affected By This Breach?

If you are a customer or have received a data breach notification, you may submit your information as part of our ongoing investigation. Submitting your information is free and does not obligate you.

Were you in the Trans Union LLC breach? Check your email

Free scan against known breach datasets. Then remove your info from data-broker sites with Data Shield.

No signup required. 30-second scan. Your email is only stored if you opt into alerts.

Get your info off data-broker sites

Data Shield files removal requests with every broker that accepts an authorized agent, and gives you the exact link or letter for the brokers that only accept requests from you.

See how Data Shield works

Check Your Risk Level

Answer a few questions to understand how this breach might affect you

Do you use Trans Union LLC?

Yes

What state are you in?

What should I do?

Change your passwords

Update passwords for the affected service and any accounts using the same password

Enable two-factor authentication

Add an extra layer of security to your accounts

Monitor your accounts

Watch for suspicious activity on your financial and online accounts

Watch for phishing attempts

Be cautious of emails or messages claiming to be from the affected company

Consider a credit freeze

Prevent unauthorized access to your credit report

Scan your email for other exposures

Check whether this address shows up in other known breaches. Free, no account.

Get your info off data-broker sites

Data Shield files removal requests with every broker that accepts an authorized agent, and gives you the exact link or letter for the brokers that only accept requests from you.

See how Data Shield works