https://www.reuters.com/article/us-usa-databreaches/former-yahoo-ceo-equifax-ceo-to-testify-at-senate-hearing-idUSKBN1D15X5 >Former Yahoo Chief Executive Marissa Mayer and the current and former CEOs of Equifax Inc will testify before a U.S. Senate panel on Nov. 8 on two massive data breaches, the committee said Wednesday.