https://www.theguardian.com/us-news/2017/sep/07/equifax-credit-breach-hack-social-security >Credit monitoring company Equifax says a breach exposed the social security numbers and other data of about 143 million Americans. >After discovering the breach, but before notifying the public, three Equifax senior executives sold shares in the company worth almost $1.8m. Since the public announcement, the company’s share price has tumbled.