31 March 2026

As IoT adoption accelerates across industries, including manufacturing, logistics, energy, and healthcare, one challenge is becoming increasingly clear:

   IoT security and regulatory compliance are now business critical.

With new European regulations such as the Cyber Resilience Act (CRA) and the NIS2 Directive, organisations deploying connected devices must ensure their infrastructure is secure, resilient, and future-proof.

At the same time, managing connectivity across thousands of devices is becoming more complex.

This is where eSIM and eIM technologies are emerging as key enablers of secure and scalable IoT deployments.

What is eSIM and Why Does it Matter for IoT Security?

eSIM (embedded SIM) is a digital SIM technology that allows remote provisioning and management of connectivity without the need for physical SIM cards.

Unlike traditional SIMs, eSIM enables:

• Remote network provisioning
• Secure over-the-air (OTA) updates
• Centralised device and connectivity management

 In IoT environments, where devices are globally distributed and often difficult to access, eSIM provides a secure, scalable, and flexible connectivity model.

🔗 Learn more about our enterprise eSIM solutions.

The Growing Challenge of IoT Security and Compliance

Connected devices are now embedded in critical infrastructure and operations, including:

• Industrial automation systems
• Smart energy and grid infrastructure
• Connected logistics and fleet tracking
• Healthcare and medical devices

These environments require:

• Secure data transmission
• Reliable, always-on connectivity
• Remote lifecycle management
• Compliance with evolving cybersecurity regulations

However, traditional SIM-based connectivity was not designed for this level of scale and complexity.

Limitations of Physical SIM Cards

• Manual provisioning and replacement
• Limited remote control
• Increased risk of tampering
• Operational inefficiencies at scale

Result: Increased risk, higher costs, and reduced scalability.

New EU Regulations: CRA and NIS2 Explained

Cyber Resilience Act (CRA)

The CRA ensures that connected products remain secure throughout their lifecycle.

Key requirements include:

• Secure-by-design development
• Continuous vulnerability management
• Ability to deploy remote security updates

NIS2 Directive

NIS2 expands cybersecurity obligations across critical sectors.

It introduces:

• Risk management frameworks
• Incident reporting obligations
• Supply chain and infrastructure security

 Key Takeaway

Connectivity is no longer just infrastructure, it is part of compliance and risk management.

Why eSIM is a Game Changer for Secure IoT Connectivity?

eSIM fundamentally transforms how connectivity is deployed and managed.

Enhanced Security

• Secure profile provisioning
• Reduced physical tampering risks
• Strong authentication mechanisms

Remote Lifecycle Management

• Update connectivity profiles remotely
• Deploy security patches OTA
• Adapt to regulatory requirements

Global Scalability

• Switch between networks without SIM replacement
• Enable seamless international deployments
• Reduce operational complexity

From Connectivity to Compliance: A Strategic Shift

Connectivity is becoming part of the compliance layer.

With eSIM, organisations can:

• Maintain control across regions
• Respond quickly to vulnerabilities
• Standardise security across deployments

This is especially critical for:

• Manufacturing
• Energy and utilities
• Healthcare and regulated sectors

What is SGP.32 and Why It Matters for IoT eSIM?

SGP.32 is a GSMA standard designed specifically for IoT eSIM deployments.

It enables:

• Scalable remote provisioning
• Simplified device onboarding
• Interoperability across platforms

Key difference:
SGP.32 supports enterprise-grade IoT deployments, not just consumer devices.

What is eIM (eSIM IoT Manager) and Why It Matter?

A key component of the SGP.32 architecture is the eIM (eSIM IoT Manager).

The eIM acts as a central “mission control” platform for managing eSIM connectivity across large device fleets.

What does eIM enable?

• Remote provisioning and management of eSIM profiles
• Activation and deactivation of connectivity
• Over-the-air configuration updates
• Centralised control across global deployments

Why eIM is critical for security and compliance:

IoT devices:

• Often lack user interfaces
• Are deployed in remote or inaccessible locations
• Require automated, secure lifecycle management

With eIM, organisations can:

• Apply security updates remotely (supporting CRA compliance)
• Enforce consistent security policies
• Reduce operational risks and manual intervention

Key takeaway:

eSIM enables connectivity, eIM enables control at scale.

🔗 Read more about eSIM IoT Manager (eIM) and its role in IoT connectivity

Where Telecom26 Supports Secure IoT Deployments

At Telecom26, we support enterprises deploying secure, scalable global connectivity solutions, including eSIM and eIM-ready architectures.

We typically support organisations where:

• Connectivity is business-critical
• Devices are distributed globally
• Security and compliance are key priorities

Our solutions include:

• Global IoT connectivity solutions
• Enterprise eSIM deployments
• Support for evolving standards such as SGP.32 and eIM
• eSIM enterprise grade connectivity and security for Mobile Workforces

🔗 Read more about Travel eSIM Security Guide

Our role is to provide a reliable connectivity foundation that supports both operational performance and regulatory compliance.

Conclusion: Connectivity is Now a Strategic Security Layer

As IoT continues to scale and regulatory pressure increases, connectivity is no longer just a technical component.

It becomes:

• A security layer
• A compliance requirement
• A strategic enabler of innovation

Organisations that recognise this shift early will be better positioned to build secure, resilient, and future-ready operations.

 FAQ: eSIM, eIM and IoT Security

What is the difference between eSIM and traditional SIM?

eSIM is embedded in the device and allows remote provisioning, while traditional SIM cards require physical handling and replacement.

Is eSIM more secure than physical SIM cards?

Yes. eSIM reduces physical tampering risks and enables secure remote management and updates.

What is eIM in IoT connectivity?

eIM (eSIM IoT Manager) is a central platform that allows remote management of eSIM profiles across large device fleets.

How does eSIM support CRA and NIS2 compliance?

eSIM enables remote updates, stronger control, and consistent security policies all key requirements for compliance.

Which industries benefit most from eSIM and eIM?

Manufacturing, energy, logistics, and healthcare especially where devices are distributed and security is critical.

Looking to secure and scale your IoT connectivity?
👉 Contact our experts to explore how Telecom26 can support your deployment.