The Secretary for Security (; pt|Secretaria para a Segurança) is the director of the government department responsible for public safety and security in Macau. The role replaced the former post of Secretary for Public Security. It is responsible for managing the Macau public security and police agencies.
The following entities are controlled under the MSF:
Macau Customs Service is a government agency responsible for the protection against smuggling; revenue collection, detect and deter drug trafficking; protection of intellectual property rights; the protection of consumer interests; and the protection and facilitation of legitimate trade and maintaining trading integrity in Macau.
Customs Service is most visible at the points of entry into Macau:
| Name | Assumed office | Left office | Term | |
|---|---|---|---|---|
| 1 | Cheong Kuoc Vá Chinese: 張國華 | 20 December 1999 | 20 December 2004 | 1 |
| 20 December 2004 | 20 December 2009 | 2 | ||
| 20 December 2009 | 20 December 2014 | 3 | ||
| 2 | Wong Sio Chak 黃少澤 | 20 December 2014 | 20 December 2019 | 4 |
| 20 December 2019 | Incumbent Term ends on 20 December 2024 | 5 |
The Secretariat's offices are located at the former San Francisco Barracks located near to what is now S. Francisco Garden.