This document discusses data breaches and recommendations for preventing them. It provides definitions of data incidents and breaches, examples of major past breaches organized by year and root cause, statistics on breaches by sector in 2017, and a case study of the 2017 Equifax breach. It then offers guidance on proactively preventing breaches through practices like regular security awareness training and response planning. The document stresses the importance of transparency, communication, and fulfilling legal obligations in responding to a breach.