SEC chair grilled by Senate panel over cyber breach, Equifax
September 26, 2017 at 14:16 PM EDT
WASHINGTON (Reuters) - The chairman of the U.S. Securities and Exchange Commission (SEC) told a congressional committee on Tuesday he did not believe his predecessor Mary Jo White knew of a 2016 cyber breach to the regulator's corporate disclosure system, the exact timing of which could not be known "for sure."