Zero Trust eSIM: Everything you need to know about Cloudflare eSIM to secure mobile devices (2024)


Zero Trust eSIM: Everything you need to know about Cloudflare eSIM to secure mobile devices (2024). Cloudflare, Inc. announced the development of Zero Trust SIM — this is the first solution to secure every packet of data from a mobile device. 

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.

As organizations become more distributed through remote working and employee bring-your-own-device (BYOD), securing all devices of employees used to become increasingly difficult. To solve this problem, most companies use a secure agent or application running on employees’ devices to help secure them.

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.

Cloudflare Launches eSIM To Secure Smartphones And Networks

The Cloudflare Zero Trust SIM will seamlessly integrate with Cloudflare’s entire Zero Trust stack, enabling security policy enforcement for all traffic exiting the device. And since Zero Trust SIM gives priority to eSIM (embedded SIM), which reduces the risk of SIM swapping attacks, saving time for security professionals.

With Cloudflare’s Zero Trust SIM, businesses can:

  1. As software agents are flawed, they may be unable to manage all sorts of traffic. Since all packets of data leaving a device go through the SIM, Cloudflare Zero Trust SIM can help secure all of an organization’s data.
  2. Building on modern eSIM technology means the Zero Trust SIM can be automatically deployed and activated on all devices within an organization using existing MDM (mobile device management) solutions. This allows Cloudflare Zero Trust SIM to seamlessly roll out without the labor-intensive shipping of physical SIM cards.
  3. The Zero Trust SIM can be used standalone or deployed with WARP, Cloudflare’s mobile agent, to enable device status checks and HTTPS inspections in more demanding organizations.
  4. As more and more objects are connected to the internet — from vehicles to payment terminals and shipping containers to vending machines — these things must also be secured. Cloudflare is actively working on new solutions based on the Zero Trust SIM to provide industry-leading connectivity and Zero Trust security for the Internet of Things.

Cloudflare’s approach also makes the setup process easy, as all the employee has to scan a QR to enjoy the benefits of this solution. Nothing more.

This proposal also protects all outgoing or incoming traffic when the device is connected through a mobile network. It makes no difference what app or what type of content is used. But when the device is connected to a Wi-Fi network, it does not intervene.

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