https://www.reuters.com/article/us-equifax-cyber/criticism-of-equifaxs-data-breach-response-mounts-shares-tumble-idUSKCN1BJ1NF

Equifax Inc shares tumbled as much as 18 percent on Friday as cyber security experts and customers criticized the consumer credit score provider's response to a hack that may have stolen personal details of up to 143 million Americans.