The document discusses developing Emergency Support Function (ESF) no. 18 for cyber security and response. It outlines that ESF 18 is intended to provide awareness of cyber threats, highlight challenges of managing cyber events, and create awareness of integrating cyber response capabilities into emergency management plans. The document also explains that ESFs help coordinate response efforts across disciplines and that developing ESF 18 could help catalogue cyber response resources and define roles for defending against cyber attacks and restoring critical systems during disasters.