Episode 111: Securing Mobile Connectivity (Domain 4)

Mobile devices connect through a variety of channels—cellular networks, Wi-Fi, and Bluetooth—each with its own risks and requirements for secure operation. In this episode, we examine the vulnerabilities introduced by unsecured public Wi-Fi, rogue access points, and Bluetooth pairing, and how attackers can exploit these to conduct man-in-the-middle (MitM) attacks, spoofing, or data interception. We highlight best practices for securing each connection method, including the use of VPNs, disabling unused radios, enforcing strong encryption protocols, and leveraging mobile endpoint monitoring tools that detect unsafe configurations or suspicious behavior. Cellular networks offer some built-in protections, but are still vulnerable to IMSI catchers and SIM swap fraud, both of which can be mitigated through multi-factor authentication and alerting. We emphasize the importance of layered defense—where multiple settings and tools work together to ensure that mobile connectivity doesn’t become an open door to your network. Mobility demands flexibility, but that doesn’t mean compromising on control.

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