Security and sustainability conception analysis is being provided in the paper. The conceptions of security and sustainability have been selected due to their significance for contemporary globalized world’s issues. Initially, the perceptions encompassing even ancient times are being elaborated. Onward, with an intention to get a more sophisticated view of above mentioned expressions, relevant scientific literature has been critically reviewed accentuating to the dimensions of those two phenomena. The following common dimensions could be proposed: social, economic, environmental. The implication could be stated - security conception provides not only those three dimensions some other important dimensions could be distinguished as well. One more important finding composes the perception of dimensions interactions to analyzed conceptions. Some important implications are being provided in the paper, which elevate the significance of security to sustainability for today’s globalized society - security can be proposed as expression with ponderable value, while sustainability gains this power only with “sustainable development” phenomenon.