E-voting is considered one of the most important applications of e-democracy. Although the implementation of the e-voting system has various purposes, the main advantages are the selection of candidates with the appropriate competencies, increased mobility of voters, participation of citizens outside the country in the elections, expansion of disabled individuals’ access to democratic procedures, independent and operative proclamation of election results and etc. Security issues play a crucial role in the implementation and development of e-voting systems. The article examines the approaches to e-voting systems and the security threats to the system. An empirical evaluation of security threats to e-voting system based on the multi-criteria evaluation method is reviewed (pp.37-43).