This study addresses the increasing vulnerability of empty-nest elderly individuals to online fraud within the framework of Active Aging Theory. Existing research highlights gaps in addressing the elderly’s digital self-efficacy, social support, and legal protection, which contribute to their susceptibility to scams. This study proposes a comprehensive intervention framework targeting these gaps through a combination of group social work and Active Aging Theory, aimed at enhancing fraud identification abilities, promoting self-efficacy, and fostering social networks. The intervention consists of structured learning sessions, scenario-based simulations, case-sharing, and legal rights education. The results show significant improvements in participants’ ability to recognize fraud, their awareness of digital risks, and their engagement in social support networks. The findings suggest that integrating emotional support and social networks into digital education can empower elderly individuals to transition from passive victims to proactive defenders against online fraud. Further research is needed to assess the long-term impact and scalability of such interventions.