What the CMO and CPO roles have in common
Everything revolves around data, and data is what both of the CMO and CPO roles have in common—one collects it and the other protects it.
With regard to clients, marketing has access to the most sensitive information. It is the responsibility of the marketing team to indicate how the information was gathered with technology, and how it will be utilized by the company. (The technology marketing uses generally will have been approved by the CTO or CIO.) As a result, the CMO must ensure the team adheres to data best practices. Those best practices are usually defined by the privacy policies established by the CPO, in alignment with the relevant privacy regulations and laws. For example, features such as unsubscribing from mailing lists or notifications of privacy policies are mandatory by law in certain countries.
As soon as the data is collected, both the CMO and CPO need to make sure they handle it properly, as each data record...