Dans cet article. on suggere que les problemes de sCcuritC a fondement politique devraient aussi &tre analyses d'un point de vue psychologique.Puisque les individus evaluent le niveau de sCcuritC a travers des processus cognitifs, les rksultats sont subjectifs. Les representations concernant la securitC sont construites a partir d'une menace perque dans l'environnement, menace que l'individu craint d'avoir du ma1 a affronter. Deux Ctudes poursuivies en Israel. oh le probleme de la securitC est aigu. montrent B quel point les individus vivent diffkremment I'insecurite et indiquent que plusieurs facteurs influencent les representations relatives a la securitk. Ces donnees indiquent que des Cvknements reels, militaires, politiques, ou economiques. doivent Ctre perqus pour devenir un aspect de la realit6 personnelle: les Cvknements exterieurs sont compris et interpret& subjectivement. Notre approche accorde une importance particulikre a la psychologie politique dans I'Ctude des problemes de s6curitC. This paper suggests that politically rooted security problems should also be analysed from a psychological perspective. As individuals evaluate the level of security via cognitive processes, the outcomes are subjective. Security beliefs are formed on the basis of the perception of threat in the environment with which the individual perceives a difficulty in coping. Two studies performed in Israel. where the security problem is acute. illustrate how differently individuals experience insecurity, and how different factors influence beliefs about security. These results indicate that while military, political, or economic events are real, they have to be perceived in order to become part of the individual's reality: external events are subjectively interpreted and understood. This approach assigns special importance to political psychology in studying security problems.Requests for reprints should be sent t o Daniel Bar-Tat. School of Education.