Public and Government buildings accounted for 10% of the mass shooting events from 2000 through 2017, and continue to be high-risk targets for potentially dangerous individuals. The LockOut SmartBoot System adds layers of physical defense through door barricades and ballistics shields for glass entry points. This defense, along with visual and auditory warning notifications, afford building occupants the ability to protect themselves while notifying police dispatch that an event has taken place, and giving them the tools necessary to quickly identify the threat and move to intercept.