4.4 Million Impacted in TransUnion Breach, Michigan at Risk

A new data breach at the giant credit reporting TransUnion, caused Michigan's Attorney General, Dana Nessel, to urge residents to stay alert following the break.

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The breach had occurred in July 2025, and exposed personal information from more than 4.4 million people nationwide.

How the TransUnion Breach Happened

Investigators say that the breach was caused by a third-party application, gaining unauthorized access to TransUnion systems.

What Information Was Exposed

While financial credit details weren't compromised, sensitive information, such as names, Social Security numbers, and birth dates were exposed.

What TransUnion Is Offering Affected Consumers

With the recent exposure, TransUnion is offering affected consumers 24 months of free credit monitoring. You can include service alerts for changes to your credit file and dedicated support if you suspect you're a victim of fraud.

Steps to Protect Yourself Against Identity Theft

Michigan consistently ranks among the top states for identity theft cases, Nessel stresses that everyone should take extra precautions.

• Watch out for phishing emails
• Updating and strengthening your passwords
• Limit what you may store digitally that could be personal
• Enabling multifactor authentication when possible
• Check your credit reports Regularly
• If your Social Security Number was exposed, consider a credit freeze

Nessel Calls for Stronger Data Protection Laws

We have long struggled with high rates of identity theft here in the state of Michigan. Large-scale breaches like this, only add to the problem. Nessel has also renewed her call for stronger data breach notification laws, so that companies can be held accountable for breaches and to better protect their customers.