Credit report company Equifax is now saying an additional 2.5 million Americans may have been affected by a massive security breach this summer, bringing the total to 145.5 million people. 

Equifax chief executive Richard Smith has retired in the aftermath of the credit reporting agency's data breach, which exposed the personal information of 143 million Americans.  

Oklahoma City recovered thousands of emails it initially claimed were deleted from the account of a former forensic lab employee.