Yahoo investigating if insiders knew of hack

Yahoo said investigators into the late 2014 theft of information of at least 500 million user accounts are looking into the possibility that some people within the company knew about the security incident at the time.Law enforcement authorities on Monday also “began sharing certain data that they indicated was provided by a hacker who claimed the information was Yahoo user account data,” the company said in a regulatory filing to the U.S. Securities and Exchange Commission. Yaho