Cybersecurity awareness refers to basic literacy in the digital age. This study discusses the influencing mechanism of an individual’s life satisfaction on cybersecurity awareness, considering the roles of internet dependence and burnout based on the broaden-and-build theory (BBT) of positive emotions. We constructed a theoretical framework and tested hypotheses using regression analysis of a sample of 951 subjects based on a longitudinal survey. The results showed that life satisfaction could impact cybersecurity awareness through the broaden-and-build effects of BBT and a need compensation mechanism. This study provides managers with ideas for promoting cybersecurity awareness by enhancing positive psychology.