<p>This systematic review unveils significant convergence between cybercriminals and terrorists over the past decade, characterized by substantial overlap in tactics, capabilities, and infrastructure exploitation. Key findings illuminate the adoption of cybercriminal methods by terrorist organizations, the engagement of cybercriminal groups in terrorist activities, the proliferation of enabling technologies such as cryptocurrencies and the dark web, and the role of social media in facilitating knowledge exchange between diverse threat actors. While direct terrorist involvement in profit-driven cybercrime appears limited, the escalating convergence underscores urgent imperatives for enhanced cooperation, legal refinement, the establishment of flexible counter-threat authorities, and collaboration with the private sector. Continuous monitoring of this rapidly evolving landscape is crucial to inform effective policies and interventions in an increasingly interconnected digital world.</p>