Family Cybersecurity Jurisprudence (FCJ): A Foundational Interdisciplinary Framework Integrating Islamic Legal Theory, Cybersecurity Engineering, and Digital Family Psychology

This paper formally introduces and defines Family Cybersecurity Jurisprudence (FCJ) as an independent, interdisciplinary field of study addressing a critical and persistent gap in global cybersecurity, legal, and ethical scholarship: the systematic failure to protect the family as a coherent sociotechnical unit in cyberspace. While contemporary cybersecurity research remains predominantly technical, and existing legal, ethical, and psychological studies address digital harm in fragmented or reactive ways, no unified framework currently integrates normative authority, technical enforceability, and family-centered behavioral governance.FCJ responds to this epistemic vacuum by establishing a jurisprudence-based cybersecurity paradigm grounded in Islamic legal theory (usūl al-fiqh and maqasid al-sharī'a), cybersecurity engineering principles, and digital family psychology. The paper conceptualizes the family not as a collection of individual users, but as an interconnected system with differentiated roles, vulnerabilities, and authority structures, particularly emphasizing the heightened risk exposure of children in digitally mediated environments.The core contribution of this work is the formulation of the Tri-Dimensional FCJ Model, which integrates three inseparable dimensions: (1) a jurisprudential dimension that establishes normative obligations and harm hierarchies based on maqasid-oriented legal reasoning; (2) a technical dimension that translates these obligations into implementable cybersecurity controls, architectures, and risk mitigation mechanisms; and (3) an educational-behavioral dimension that cultivates digital immunity through parental governance, ethical formation, and developmental psychology. Together, these dimensions form a coherent normative-technical framework capable of addressing ideological, behavioral, technical, and economic threats targeting families in cyberspace.Methodologically, the paper employs an interdisciplinary synthetic approach combining jurisprudential analogy (qiyās), systems thinking, and normative-technical mapping to construct a field-level theory resistant to methodological fragmentation. The framework further extends to contemporary challenges posed by artificial intelligence, articulating Sharia-guided constraints for AI deployment within family contexts and proposing governance models that balance protection, autonomy, and ethical boundaries.Beyond theoretical formulation, FCJ advances concrete policy implications at the household, community, institutional, and state levels, and articulates a future research agenda aimed at establishing academic programs, metrics, and research institutions dedicated to family-centered cybersecurity. This paper asserts that Family Cybersecurity Jurisprudence is no longer a conceptual proposal, but a necessary and structured academic discipline required to safeguard the family under conditions of accelerating digital and algorithmic transformation.