Zscaler’s Zero-Trust Cellular Service Redefines Secure IoT and OT Connectivity
Zscaler has expanded its Zero-Trust security platform with a new cellular service. Announced in June 2025 at the Zenith Live conference in Prague, the solution provides secure mobile connectivity for IoT and OT devices. It will be available to customers from August 2025.
The service ensures stable and protected connections by integrating directly with mobile networks worldwide. Devices using Zscaler Cellular will automatically connect to any available mobile network while maintaining strict security controls.
Zscaler Cellular works through a SIM card, eliminating the need for extra software or VPNs. It isolates each device, reducing the risk of cyberattacks by securing all inbound and outbound data via the Zero Trust Exchange platform. The Cellular Edge feature also guarantees a direct link to Zscaler’s Security Cloud, protecting every mobile data stream.
Businesses can choose from three deployment options. They can use their current mobile provider, switch to an end-to-end Zscaler service, or adopt a campus solution. The latter replaces traditional Wi-Fi with a high-speed, low-latency 5G network for improved performance and security.
Zscaler is partnering with major telecom companies like T-Mobile and AT&T to deliver this service. Additionally, collaborations with cybersecurity firms like CrowdStrike, Vectra AI, Peraton, and Orca Security will enhance protection for mobile-connected devices. CrowdStrike’s endpoint detection will integrate by September 2025, while Vectra AI’s agentless network detection and Orca Security’s cloud risk management will follow by December 2025. Peraton’s strategic partnership is also set for completion by the end of the year.
The solution aims to support large-scale digital transformation by offering scalable, seamless connectivity. It reduces risks for IoT and OT devices while maintaining high security standards across global networks.
Zscaler Cellular will launch in August 2025, providing businesses with a flexible and secure way to connect mobile devices. The service integrates with existing telecom infrastructure and offers multiple deployment models. Partnerships with leading security providers will further strengthen its ability to protect data in transit and at rest.
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