The TransUnion data breach exposed the data of up to 4.4 million customers. CNET

Major credit bureau TransUnion has suffered a data breach that exposed sensitive information belonging to 4.4 million customers, including names and Social Security numbers.

The data breach took place on July 28, meaning the sensitive information could have been sold and distributed throughout the dark web already. TransUnion is notifying people who may have been affected that their information could be exposed and sharing the actions the company is taking.

Consumer rights law firm Wolf Haldenstein issued an alert on the breach and encouraged those who have received a notice and spot unusual activity on their credit report to reach out.

A representative for TransUnion didn't immediately respond to a

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