Globacom Deploys Advanced Encryption and Authentication Framework Across 4G LTE Network

Raheem Adegbolu
Globacom Limited has announced the deployment of a comprehensive security framework for its 4G LTE network, introducing strengthened encryption, mutual authentication, and signalling controls to protect subscriber identity and network integrity across its nationwide LTE coverage.

The framework was developed over a two-year period coinciding with the company’s 4G LTE expansion, which now covers all 36 states of Nigeria and over 200 tertiary institutions. It addresses critical security layers within the LTE ecosystem, including subscriber authentication, air-interface encryption, and signalling plane protection — areas the company identified as priorities as 4G adoption accelerated across its customer base.

Key elements of the deployment include strengthened mutual authentication controls to prevent SIM impersonation and unauthorized access, mandatory AES-based air-interface encryption to safeguard user data, and Diameter signalling firewalling to mitigate fraud and subscriber data exposure. Rogue base-station detection controls have also been deployed to improve subscriber privacy, and security assurance has been extended to VoLTE and IMS platforms to cover IP-based voice services. Prior to rollout, the company conducted vulnerability assessments and penetration testing across LTE core, radio, and customer-facing platforms.

“The rapid adoption of 4G LTE services requires an equivalent commitment to securing the network at every level,” Globacom said. “Our customers should be able to enjoy high-speed connectivity with full confidence that their identity, voice calls, and data are protected.”

The security framework is supported by the Glo-1 submarine cable, which provides the bandwidth backbone for 4G LTE services across Nigeria. Existing 4G-enabled customers do not need to take any action, as current SIMs are fully compatible with the enhanced security protocols.