US credit report giant Equifax has replaced two senior staff after revealing last week he had suffered a massive data breach.
Data of up to 143 million Americans, about 400,000 Britons and a number of Canadians may have been stolen by hackers between mid-May and July.
The chief information officer and chief of security have both stood down.
Equifax is facing dozens of legal claims over the breach, which the Federal Trade Commission is investigating.
Social security numbers, dates of birth, addresses and driver’s license numbers of up to 143 million Americans were exposed, the Atlanta-based firm, says.
Credit card numbers for about 209,000 Americans and “some controversy documents with personal identification information” for some 182,000 Americans were also accessed by hackers, he adds.
Lenders use data accumulated by companies such as Equifax to evaluate the credit worthiness of customers looking to purchase homes, cars and credit cards.
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Susan Mauldin, chief of security, retired and was replaced by Russ Ayres in an interim role, while the chief information officer of David Webb left and was replaced by Mark Rohrwasser in an interim capacity, the firm said.
The changes, made as part of the signature of the revision of the cyber security incident of non-compliance, were effective “immediately,” Equifax said in a statement.Recent massive data breach
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The company added that its investigation was ongoing and that he was working in close collaboration with the FBI in their criminal investigation.
Equifax contains data on more than 820 million consumers, as well as information on 91 million companies.
Its stock price has fallen by more than a third since it revealed the breach on September 7, the Reuters news agency reports.
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US Senator Elizabeth Warren, who has built a reputation as a consumer champion, is demanding to know how the company’s security systems have failed.
“Equifax has not provided the necessary information that describes exactly how this happened, and exactly how your security systems will not,” she said in a letter to the company.
“Equifax’s initial efforts to provide customers with information did nothing to clarify the situation and actually seemed to be efforts to cheat them in the waiver of important legal rights.”
The credit rating of the signature of the chief executive, Richard Smith, has openly apologized for the violation and testify at a House Energy and Commerce Committee hearing in the U.S. Congress on October 3.