This study explores the intersection of circular economy (CE) practices and cybersecurity measures, aiming to uncover strategic implications for stakeholders and propose future research directions. The research employs a systematic literature review methodology, analyzing peer-reviewed articles, reports, and case studies published between 2014 and 2024. The review focuses on identifying mutual benefits and challenges of integrating cybersecurity within CE models, the role of standards, policies, and regulatory frameworks in facilitating this integration, and the evolving landscape of opportunities and strategic recommendations for businesses, policymakers, and technologists. Key insights reveal that cybersecurity is essential for protecting the digital infrastructure supporting CE practices and serves as a strategic asset enhancing business model resilience and sustainability. Challenges include securing intricate supply chains and robust data protection measures. Opportunities lie in leveraging digital technologies to foster innovative, sustainable business models and developing comprehensive regulatory frameworks. Strategic recommendations emphasize a holistic approach to integrating cybersecurity, supportive policies, and advanced secure technologies. Future research directions include empirical studies on the effectiveness of cybersecurity measures in CE and interdisciplinary research bridging environmental science, cybersecurity, and business management. The study highlights the symbiotic relationship between CE and cybersecurity, driven by their mutual reinforcement in sustainable development. Examples from the fashion and automotive industries illustrate the transformative potential of integrating digital technologies with CE principles, while also emphasizing the critical importance of cybersecurity in safeguarding the digital infrastructure and data that underpin these innovative business models.This study explores the intersection of circular economy (CE) practices and cybersecurity measures, aiming to uncover strategic implications for stakeholders and propose future research directions. The research employs a systematic literature review methodology, analyzing peer-reviewed articles, reports, and case studies published between 2014 and 2024. The review focuses on identifying mutual benefits and challenges of integrating cybersecurity within CE models, the role of standards, policies, and regulatory frameworks in facilitating this integration, and the evolving landscape of opportunities and strategic recommendations for businesses, policymakers, and technologists. Key insights reveal that cybersecurity is essential for protecting the digital infrastructure supporting CE practices and serves as a strategic asset enhancing business model resilience and sustainability. Challenges include securing intricate supply chains and robust data protection measures. Opportunities lie in leveraging digital technologies to foster innovative, sustainable business models and developing comprehensive regulatory frameworks. Strategic recommendations emphasize a holistic approach to integrating cybersecurity, supportive policies, and advanced secure technologies. Future research directions include empirical studies on the effectiveness of cybersecurity measures in CE and interdisciplinary research bridging environmental science, cybersecurity, and business management. The study highlights the symbiotic relationship between CE and cybersecurity, driven by their mutual reinforcement in sustainable development. Examples from the fashion and automotive industries illustrate the transformative potential of integrating digital technologies with CE principles, while also emphasizing the critical importance of cybersecurity in safeguarding the digital infrastructure and data that underpin these innovative business models.