The Deputy Federation Security Advisor is a high-ranking individual in the Federation government, often with specialized expertise, who may be appointed to assist and advise the Federation Security Advisor and Federation President.

In 2381, Annika Hansen – the former Borg drone also known as Seven of Nine -- was appointed Deputy Federation Security Advisor during the attempted extermination of the Federation and its allies by the Borg Collective. (ST - Destiny novel: Gods of Night)

Executive departments and cabinet-level agencies of the United Federation of Planets
Agriculture • Commerce • Defense • Exterior • Housing • Science • Technology • Temporal Investigations • Travel independent cabinet-level agency: Office of the Federation Security Advisor