https://www.cnbc.com/2017/10/02/equifaxs-then-ceo-waited-three-weeks-to-inform-board-of-massive-data-breach-testimony-says.html

Equifax's former chief executive waited nearly three weeks to tell the company's board of directors about the now infamous data breach, as a group of company and outside security experts scrambled to figure out what had happened, according to written testimony prepared for his visit to Capitol Hill on Tuesday.

Richard Smith, Equifax's former CEO who abruptly retired last week, learned about the hack on July 31 and hired outside legal and investigative experts and contacted federal law enforcement the same week. But he didn't inform the company's board for another 20 days.