There have been an increasing number of articles in the press related to various threats and attacks on computer systems and networks. The critical infrastructures upon which our communities, states, and nation rely are increasingly dependent on computer systems and networks and are thus also increasingly vulnerable to cyber attacks upon them. Communities understand their responsibility in terms of being prepared to prevent, detect, and respond to most natural and man-made disasters but few understand what is involved in defending against cyber attacks. The Community Cyber Security Maturity Model provides a structure which communities and states can use to determine their level of preparedness and to create a plan to improve their security posture and enhance their chances of successfully preventing or detecting and responding to a cyber attack.