Equifax breach hit 2.5 million more Americans than first believed

A just completed review of the Equifax breach released by the company on Monday found that an additional 2.5 million U.S. consumers were potentially impacted, bringing the total to 145.5 million.

Equifax hired the forensic security firm Mandiant to investigate the breach. The company said the additional potentially impacted consumers were not victims of a new attack but rather victims who the company had not counted before.