Securing the IoT ecosystem: Best practices and strategies

The Internet of Things (IoT) has revolutionised industries, connecting billions of devices to streamline operations, enhance productivity, and deliver innovative customer experiences. Yet, this rapid expansion comes with escalating risks.

But as the number of connected devices skyrockets—expected to hit 41.1 billion by 2030—it’s essential to secure these devices, networks, and the data they generate. A single vulnerability can expose entire ecosystems to cyberattacks, creating risks for businesses and their customers. For technology resellers and enterprises, understanding and implementing robust security measures isn’t just good practice—it’s mission-critical.

Understanding the threat landscape

IoT security challenges arise from the convergence of diverse devices, applications, and networks, each with its own vulnerabilities. For example:

• Device vulnerabilities: IoT devices often come with minimal security features, making them easy targets for hackers. Many are shipped with default credentials or lack firmware update mechanisms.
• Massive attack surface: Without proper segmentation, IoT devices connected to enterprise networks can act as entry points for cyberattacks, exposing sensitive systems and data.
• Data interception and manipulation: Cybercriminals exploit unsecured networks to intercept, alter, or steal sensitive information.
• Compliance risks: Regulatory requirements such as NIS2 and HIPAA mandate stringent security measures, with non-compliance leading to hefty fines.

These vulnerabilities are not hypothetical either, as several incidents over the last decade underscore the importance of proactive IoT security. The ongoing evolution of the Mirai botnet highlights the persistent risks within the IoT threat landscape. Originally infamous for its massive 2016 DDoS attack, Mirai has resurfaced with a new exploit targeting unpatched IoT devices to expand its botnet capabilities.

With stakes this high, securing the IoT ecosystem is a business-critical priority for technology resellers and enterprises alike.

IoT security best practices

Here’s an in-depth look at best practices and strategies to secure the IoT ecosystem.

1. Start with secure boot

Think of secure boot as the lock on the front door of your IoT devices. It ensures that only trusted firmware can run on a device, blocking attackers from loading harmful code. By implementing hardware-backed cryptographic keys, businesses can further strengthen defences.

For instance, many modern microcontrollers already include secure boot features. By integrating this at the start of the project, you’re safeguarding devices from early-stage vulnerabilities.

2. Enable Over-the-Air (OTA) updates

IoT devices need frequent updates to patch vulnerabilities. OTA updates simplify this process, allowing businesses to deploy fixes without recalling devices. However, OTA systems must be built on a hardware-based root of trust to prevent attackers from exploiting the update mechanism.

3. Monitor and Manage Devices Remotely

Keeping an eye on IoT devices doesn’t stop after deployment. Remote monitoring tools allow companies to track performance, identify vulnerabilities, and respond quickly to potential threats.

Say, for example, a smart temperature sensor suddenly starts transmitting gigabytes of data instead of a few kilobytes. This clear anomaly signals something is wrong—likely a breach. Early detection through monitoring can halt security issues before they escalate.

4. Adopt a Software Bill of Materials (SBOM)

An SBOM lists all components within a device's software, making it easier to track vulnerabilities. Regularly reviewing SBOMs against known vulnerabilities ensures that weaknesses don’t linger unnoticed.

For example, regulatory frameworks like the EU Cyber Resilience Act are already pushing companies to maintain better visibility over their software stacks. Starting with an SBOM now will keep you one step ahead.

5. Adopt Public Key Infrastructure (PKI)

PKI enables digital certificates and keys to manage secure communications between devices. It ensures only authorised devices and users access your systems, reducing the risk of man-in-the-middle attacks. Semiconductor companies often update security-related algorithms, and staying current with these updates keeps devices protected. 

Building a bulletproof IoT security strategy

Which cybersecurity solution would help with IoT physical security

Choosing the right cybersecurity solution is key to protecting IoT physical security. With IoT devices controlling everything from building access systems to factory machinery, any breach can result in serious disruptions. A robust solution includes features like real-time monitoring to detect suspicious behaviour, threat detection systems that act on anomalies, and advanced device management for maintaining security across all endpoints.

For example, solutions that offer network segmentation can prevent lateral movement of threats, while tools like Public Key Infrastructure (PKI) ensure that only authorised devices and users can interact with your network. These capabilities not only secure physical assets but also maintain operational continuity, making them essential for any IoT-driven environment.

 IoT security best practices in action

A global manufacturing company operating in over 80 countries provides a clear example of the importance of IoT security best practices. They faced challenges with limited visibility into their operational technology (OT) devices and inconsistent security protocols, leaving them exposed to risks like ransomware.

To address this, the company implemented a solution that emphasised real-time monitoring and network segmentation; key IoT security practices. Besides their improved ability to detect and respond to threats, they could integrate this with other tools, which resulted in streamlined operations and enhanced efficiency.

This case highlights the value of applying best practices—such as continuous monitoring, device visibility, and secure segmentation—to strengthen the security of IoT ecosystems while ensuring smooth, scalable operations.

Securing your IoT ecosystem starts now

Securing the IoT ecosystem doesn’t have to be a daunting task. At Westcon-Comstor, we’ve built a comprehensive portfolio that empowers partners to deliver secure, scalable, and innovative IoT solutions. Here’s how we can support your IoT security strategy:

• IoT security expertise: Tailored support in deploying robust IoT security architectures, leveraging our deep technical expertise and comprehensive training programs.
• Holistic solutions: Integrated offerings combining IoT device management, network security, and compliance automation.
• Best-in-class vendor partnerships: Access to leading IoT security solutions from global brands like Check Point, Claroty, CrowdStrike, Palo Alto Networks, and Zscaler.

IoT opens the door to growth and innovation, but security must remain the foundation of every deployment. Partner with Westcon-Comstor, your trusted cybersecurity solutions  distributor, to protect your IoT infrastructure and unlock its full potential.