Generative artificial intelligence has made realistic synthetic audio, images, and video increasingly accessible, creating new risks when manipulated media is used within intimate and family relationships. This study examines deepfake-based cyber-domestic violence as a problem for Islamic family law and for the assessment of electronic evidence in Indonesia's Religious Courts. It uses qualitative library research with normative, philosophical, and socio-technological approaches, drawing on authoritative Islamic sources, Indonesian legal materials, and peer-reviewed scholarship on deepfakes, technology-facilitated abuse, digital forensics, and Islamic AI ethics. The analysis indicates that non-consensual intimate deepfakes, voice cloning, and fabricated digital records can intensify coercive control, damage personal and family honor, and complicate judicial assessment of authenticity. The study reconstructs al-bayyinah for the digital environment through three linked evidentiary dimensions: metadata and provenance integrity, documented chain of custody, and forensic expert assessment when authenticity is disputed. This framework is interpreted through hifz al-'ird, hifz al-nafs, tabayyun, and sadd al-dhari'ah, while distinguishing current Indonesian law from the reforms proposed by the author. The study concludes that Religious Courts require clearer procedures for contested synthetic evidence and closer coordination between family-law remedies, digital-forensic practice, and victim protection.
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