Sumner County Schools Delays Start Date Following Cybersecurity Breach Sumner County Schools in Tennessee has postponed its first day of classes after detecting a security breach in its network. Originally scheduled for August 4, the start date has been pushed back to August 10 following a vote by the school board on Tuesday. The breach was discovered on Monday, prompting an investigation involving the Tennessee Bureau of Investigation (TBI), the FBI, and the Department of Homeland Security. While details of the unauthorized access remain limited, the incident has disrupted the district’s schedule, delaying some events by a week. Key breaks, including fall and Christmas holidays, remain unchanged. Parents will receive an official update from the superintendent regarding the revised calendar. The delay highlights the growing impact of cybersecurity threats on educational institutions.