Equifax says 2.5 million more customers may have been hit by cyber attack

US credit reporting firm Equifax said about 2.5 million additional US consumers may have been impacted by a cyber attack at the company last month.

Equifax disclosed last month that personal details of up to 143 million US consumers were accessed by hackers between mid-May and July, in one of the largest data breaches in the United States.

Cybersecurity firm Mandiant, which did the forensic review, also concluded that there was no evidence the attackers had accessed databases located outside of the United States, Equifax said in a statement.

(Reporting by Sweta Singh in Bengaluru; Editing by Anil D'Silva)