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How to check if your information might be part of Equifax cybersecurity incident

ATLANTA — Personal information of potentially 143 million Americans might have been accessed in a cybersecurity incident involving Equifax, one the the three major credit reporting agencies.

RELATED: What happened and the personal information that might have been accessed

Equifax has set up a tool to see if your personal information may have been accessed.

Many users reported the tool is not working. While some users are getting a “no” message, many users are only seeing a date for “TrustedID Premier.”

After filling out some personal information on the form, you will get a message indicating whether your personal information might have been impacted by the incident.

Regardless of whether your information might have been impacted, Equifax is providing the option to enroll in TrustedID Premier identity theft protection and credit file monitoring service.

RELATED: How to get free ID theft protection and credit monitoring from Equifax

Equifax said 143 million consumers could be impacted. According to census.gov, the U.S. population is just more than 325 million.

The company discovered the breach on July 29 and unauthorized access started in mid-May.

In addition to the breach, credit card numbers for approximately 209,000 consumers “and certain dispute documents, which included personal identifying information, for approximately 182,000 consumers” were accessed during the incident.

“We identified a cybersecurity incident potentially impacting approximately 143 million U.S. consumers,” Equifax said in a statement.

“Criminals exploited a U.S. website application vulnerability to gain access to certain files. We discovered the unauthorized access and acted immediately to stop the intrusion.”

The company has engaged with a separate cybersecurity firm to conduct a forensic review of the intrusion and law enforcement officials are investigating.

According to Equifax, investigators have found no evidence of “unauthorized activity on Equifax’s core consumer or commercial credit reporting databases.”

Equifax also identified unauthorized access to limited personal information for certain U.K. and Canadian residents, according to the statement.