Africa is the poorest region of the world and has the youngest and least developed social security programs. Most Africans are not covered by social security programs. The high prevalence of HIV/AIDS in some sub-Saharan countries and internal armed conflicts in others have created difficult problems in some countries for social security programs. As a result, some countries do not have functioning social security programs. The social security programs that do exist in Africa are influenced by their colonial heritage, with the programs in English-speaking Africa differing from those in French-speaking Africa. Six different patterns of social security provision can be identified.