The purpose of this article is to understand the experience of workers' perceptions of job insecurity and its relation to performance. To this end, we conducted semi-structured interviews with 38 workers in the retail, services, education, financial, construction, and pharmaceutical industries in Chile. Using content analysis based on workers' accounts of their own experience, we identified two main categories: (a) the experience of job insecurity viewed in relation to the context of the COVID-19 pandemic and emotional aspects of job insecurity, and (b) the relation between job insecurity and performance. The possibility of job loss expresses itself in experiences and emotions that are related to the performance of workers in different ways. These findings are discussed in terms of stress theory and the motivation to preserve jobs.