Job insecurity has increasingly drawn the attention of both researchers and practitioners because its negative effects extend well beyond individual stress. Managing job insecurity is an important organizational task. With many detrimental organizational outcomes such as decline in productivity, motivation, organizational commitment, job insecurity emerges as a costly variable for private sector organizations. Guided by Conservation of Resource Theory, we used a mediation framework to test how organizational communication influences perception of employees' job insecurity via organizationally prescribed perfectionism. We used Organization Communication Scale (Postmes et al., 2001), Organizationally Prescribed Perfectionism Scale (Kim et al., 2024), and Job Insecurity Index (Pienaar et al., 2014) for exploring the proposed relationship. A total of N=189 Indian private sector employees filled out the online questionnaire circulated to them via Google forms. We analyzed the collected data by validating models through Structural Equation Modeling. The findings highlight the importance of organizational communication in reducing perception of employees' job insecurity wherein organizationally prescribed perfectionism acted as a mediator. By integrating communication, perfectionism and job insecurity within the COR framework, this study contributes both to theory and managerial implications related to insecurity perception. We further discuss the importance of communication, which should be open, timely and promotes realistic performance standards that can potentially prevent insecurity among employees. We recommend that future studies should explore the interaction of individual traits such as grit and examine the cultural differences as well.