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How Convenience and Security Coexist in IoT eSIM?

12/25/2025

When millions of IoT devices need to be deployed across different networks and locations, IoT eSIM enables enterprises to achieve large‑scale deployment and digital operations.



Simplified Procurement

eSIM cards can be procured and managed as a unified material, eliminating the need to differentiate by region or operator.

Flexible Subscription

Unlike traditional SIM cards, switching operators no longer requires replacing the physical card. New profiles can be remotely delivered via the management platform.

Low‑Cost Operations

Compared with M2M (SGP.02) solutions, onboarding a new operator incurs no extra cost. Migrating to a new operator requires only operating a single digital voucher.

Multi‑Profile Support

When multiple operator profiles are needed, a single eSIM card can store several profiles, replacing multi‑slot designs.

Intelligent Network Selection

Integrated with Watchdata’s network‑selection solutions designed for diverse scenarios, IoT devices can intelligently selects the most suitable network based on real-time network status, signal quality, and operator priority.





Does the convenience of IoT eSIM come at the expense of security design?

Security involves both protecting IoT devices and networks from malicious software and ensuring uninterrupted connectivityduring profile download and switching.





The GSMA SGP.32 solution not only empowers IoT enterprises with network autonomy but also employs robust features and design to safeguard operator networks and device connectivity.

Multi‑Method eIM Authentication

The eIM (eSIM IoT Remote Manager), as the entity that remotely manages eSIM cards, is authorized to operate eSIMs. Its identity is authenticated via a secure certificate system, which can be protected by hardware‑level encryption on the eSIM card. Custom management methods are also supported.

Secure & Encrypted Remote Operations

In addition to eIM authentication, over‑the‑air eSIM management commands are protected using TLS, digital signatures, and timeliness validation to ensure confidentiality and prevent replay attacks.

Preventing Connectivity Loss Due to Accidental Operations

After downloading & enabling a new operator profile, what if a misoperation or configuration error causes the device to lose connectivity? The device can send a Rollback command to revert to the original working profile.

Enhanced Profile Configuration Attributes

Unlike consumer eSIM (SGP.22) configurations, the IoT SGP.32 specification adds more profile attributes tailored for IoT scenarios, such as Fallback and Emergency attributes, helping users handle complex situations.

Leverage Watchdata’s GSMA‑certified eIM platform (IoT Connection Desk) and eSIM products to confidently navigate the complex connectivity requirements of global markets.