Innovations and Applications of Virtual Private Networks and Sustainable Security in Society 5.0 Libraries

In order to improve digital resilience, privacy, and access equity in contemporary library environments, this study investigates the role of Virtual Private Networks (VPNs) in fostering sustainable cybersecurity within the framework of Society 5.0 libraries. It does this by looking at the latest developments, applications, difficulties, moral dilemmas, and tactical methods associated with VPN deployment. Using peer-reviewed journal articles, conference proceedings, white papers, and policy documents published between 2010 and 2024, a methodical approach to literature review was used. The literature that bridges the fields of cybersecurity, library science, and Society 5.0 concepts was the main focus of the review. Data that was in line with the five study objectives were interpreted using content analysis and thematic synthesis.  The findings revealed that VPNs are essential for enabling private and secure access to library resources, especially in settings that are distant or vulnerable to surveillance. Cybersecurity procedures in library systems are changing as a result of innovative VPN technologies including post-quantum encryption, decentralised architectures, and AI-enhanced