This handbook from Bryan Cave Leighton Paisner provides a basic framework to assist in-house legal departments with handling a security incident. Section I explains what security incidents are, how often they occur, and which types of organizations are most at risk. Section II outlines how in-house counsel can help their organization prepare for a security incident and evaluate the degree to which the organization is already prepared. Section III walks through the different steps that must be taken once a security incident occurs, including how to investigate the incident and how to communicate with other potentially interested entities, such as business partners or law enforcement.