White Paper: 5G Roaming Drives Security by Redesign 25 Feb 2022 | Consumer Security, Industry Collaboration and Standards, Regulation and Policy, Research & White Papers, Technology & Solutions, The Telecom Sector How the specifications for 5G roaming security have had to be revisited – and why we need to pay as much attention to hardening the security of the legacy 2G, 3G, and 4G roaming ecosystem.