In its broadest definition, chief security officer may refer to the person chiefly responsible for an organization's information security, as well as its so-called “corporate security” — that is, the physical security and safety of employees, facilities and assets.

Community Services Officers (CSO) are non-sworn, uniformed personnel that perform various routine law enforcement-related tasks that do not require the authority of a peace officer. A CSO may be required to work either inside a substation or outside in the field.

The CSO leads security initiatives and heads the overall security strategy of the company. This includes performing security risk assessments and implementing security policies that prevent data loss and fraud.

CISO is the abbreviation of Chief Information and Security. It is the highest-ranking role in overseeing and managing organisational security and Cyber Security. They are responsible for developing and implementing strategies, policies, and procedures to ensure the safety of the organisation's information and assets.