This 12-video course explores the different roles played by data classification in the software development lifecycle. You will learn the differences between data owners and data custodians. While data remain the property of the enterprise or organization, data ownership is used to assign responsibility to the person who defines the requirements related to the data, and will manage the data day-to-day requirements. Data custodians are responsible for ensuring that security and access controls are configured and maintained properly. You will learn how labeling data adds extra data to describe the data being protected, which refers to metadata. This course focuses on two types of data, structured and unstructured, and the importance to the secure software lifecycle. Learners will recognize that data type is one of the key factors that determine how data should be secured. This course can be used in preparation for the (ISC)2 CSSLP: Certified Secure Software Lifecycle Professional certification exam.