Cloudflare Launches an eSIM To Secure Mobile Devices

An anonymous reader shares a report: Are smartphones ever entirely secure? It depends on one's definition of "secure," particularly when dealing with corporate environments. Most companies with bring-your-own-device policies install apps or agents on workers' smartphones to help secure them, leveraging the management capabilities built into operating systems like Android and iOS. But those might not be sufficient. That's what Cloudflare argues, anyway, in the pitch for the new services it's launching this week. Today, the company announced Zero Trust SIM and Zero Trust for Mobile Operators, two product offerings targeting smartphone users, the companies securing corporate phones and the carriers selling data services. Let's start with Zero Trust SIM. Designed to secure all data packets leaving a smartphone, Zero Trust SIM -- once launched in the U.S. (to start) -- will be available as an eSIM deployable via existing mobile device management platforms to both iOS and Android devices. It'll be locked to a specific device, mitigating the risk of SIM-swapping attacks, and usable either in a standalone configuration or in tandem with Cloudflare's mobile agent, WARP. In a recent email interview, Cloudflare CTO John Graham-Cumming made the case that Zero Trust SIM can accomplish what VPNs and other secure layers can't: cell-level protection. A SIM card can act as another security factor, and -- in combination with hardware keys -- make it nearly impossible to impersonate an employee, he argued. "Zero Trust SIM provides defense in depth. A VPN layer is one of those components, but doesn't remove the need to still deploy cellular connectivity across all of your mobile devices today, and traditional 'AnyConnect-style' VPNs do nothing to stop attackers moving laterally once they're inside the VPN," Graham-Cumming said. "We continue to see organizations breached due to challenges securing their applications and networks, and what was once a real-estate budget is quickly becoming a 'secure my remote and distributed workforce' budget from an IT security perspective." Specifically, Graham-Cumming said that Zero Trust SIM will enable Cloudflare to rewrite DNS requests leaving a device to instead use Cloudflare Gateway for DNS filtering.

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