If you recall, we are to believe that it took Yahoo! leadership years to both recognise that their data storage systems had been breached, and then notify users that their data, including some personally identifiable information had been stolen.
When put in the context of the scandal around the recent Equifax breach, and the emerging understanding of how state actors may be infiltrating US data systems, Senator Bill Nelson seems to have said what everyone was thinking:
“...only stiffer enforcement and stringent penalties will help incentivize companies to properly safeguard consumer information.”
Meyer had to be subpoenaed after she refused to appear voluntarily. You can read more about the hearing here.