Since 1990s, substantial changes in the role of the state in the social security schemes can be observed in the countries of the Central and Eastern Europe (CEE). While the general framework of social benefits in the CEE countries is still defined by the state, more and more often the task of provision of social security is transferred to the private entities. Such privatization of social policy makes the need for protection mechanism and some state guarantees even stronger. It is still the state that is responsible for the final outcome of social security systems so that is why governments are directly providing or indirectly creating safety mechanisms built-in the private market mechanism used for social purposes. The paper surveys various types of the protection mechanisms in selected CEE countries that exist in the important and already most privatized element of the social security system – the pension system. While describing the safety measures and possible guarantees, special attention is paid to the new forms that have been built up recently. The paper covers both mandatory and voluntary pension markets and identifies present and possible threats in the existing frameworks that can harm the social security. The paper concludes with general assessment and policy recommendations.