SIMBox fraud has become one of the most sophisticated sorts of fraud in recent years. As bypass fraud continues to be one of the most common and costly crimes, telecom regulators and mobile providers are suffering significant revenue losses. Gateway equipment such as fixed, Voice over Internet Protocol (VoIP), Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), VOIP to GSM, and fixed line gateway are used to terminate international inbound calls to local subscribers. By diverting traffic away from lawful interconnect gateways, fraudsters get around the connections. Outbound international traffic sent by fraudulent operators is routed through interconnect operators with reduced rates, resulting in revenue loss for the originating internet service provider. Because persons who commit SIMBox fraud are not licenced to provide telecommunication services, it is deemed criminal. Terrorist groups utilise SIMBox fraud to make international calls at local call rates, which is considered a national security danger. The study's main goals are to provide background information on cellular networks, internet gateways, voice over internet protocol, a basic review of SIMBox architecture, internet bypass fraud (including GSM gateway and SIMBox fraud), and state-of-the-art procedures to prevent SIMBox fraud. The investigation of SIMBox fraud as a national security hazard is the topic of this chapter. In addition, this research provides techniques for minimising such security threats as well as next-generation forensic detection tools.
Author(S) Details
N. Kala
Centre for Cyber Forensics and Information Security, University of Madras, Chennai, Tamilnadu, India.
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