Unsettled status leads employees to have desires to change their jobs. In the context of organisations, higher turnover intention has been a critical phenomenon, since further problems arise from it in companies. Therefore, this study aims to investigate the effects of job security on turnover intention with burnout as the mediator. This is causality research. The population consists of nurses of private hospitals in Surabaya, Indonesia. The respondents are 202 nurses. The data in this study was primarily obtained using questionnaires. The data was analysed using Partial Least Square (PLS) and Sobel tests to determine the indirect effects. This study indicates that job insecurity affects turnover intention, job burnout, and burnout affected turnover intensions. A Sobel test determined that burnout could mediate the effect of job security on turnover intentions. The employees who experienced job insecurity tended to have higher levels of intention to leave the organisation. Moreover, burnout was found to be a mediating variable between job insecurity and intention to quit. Hence, increasing job insecurity encouraged higher levels of employee burnout, and subsequently increased the intention to find alternative employment.