Compare the Top IoT Security Software for Linux as of October 2025

What is IoT Security Software for Linux?

IoT (Internet of Things) security software is designed to protect connected devices and networks from cyber threats, ensuring the confidentiality, integrity, and availability of data transmitted between IoT devices. These tools monitor and secure devices, applications, and networks that are part of the IoT ecosystem, which includes sensors, actuators, smart appliances, wearables, and industrial equipment. IoT security software includes features such as threat detection, data encryption, access control, device authentication, and vulnerability management to mitigate risks from cyberattacks, unauthorized access, and data breaches. It is essential for industries like healthcare, manufacturing, transportation, and smart cities, where the IoT devices are widely used and often contain sensitive or critical data. Compare and read user reviews of the best IoT Security software for Linux currently available using the table below. This list is updated regularly.

  • 1
    Sectrio

    Sectrio

    Sectrio

    Sectrio was launched as Subex Secure in the year 2016 to meet the growing needs of businesses in securing their Internet of Things and Operational Technology footprint on a single platform. To meet this objective, Subex invested in building the world’s largest adaptable honeypot network ground-up while simultaneously building an agile product with features aligned to the needs of our growing customer base. Subex Secure was rebranded as Sectrio in September 2021 to reflect the arrival of the next phase of our product and innovation evolution. Today, Sectrio has deployments across North America, the Middle East, APAC, and Indian markets. Our customer base is spread across verticals. Sectrio also is home to the largest number of cybersecurity domain specialists including the industry’s leading threat research team.
  • 2
    Armis

    Armis

    Armis Security

    Armis, the leading asset visibility and security company, provides the industry’s first unified asset intelligence platform designed to address the new extended attack surface that connected assets create. Fortune 100 companies trust our real-time and continuous protection to see with full context all managed, unmanaged assets across IT, cloud, IoT devices, medical devices (IoMT), operational technology (OT), industrial control systems (ICS), and 5G. Armis provides passive cyber asset management, risk management, and automated enforcement. Armis is a privately held company and headquartered in California.
  • 3
    Keyfactor EJBCA
    EJBCA is an Enterprise grade PKI platform capable of issuing and managing digital certificates in the billions. One of the most used PKI platforms globally, it is used by governments and large enterprises across all sectors. PKI shouldn't be complex. Simplify it, with EJBCA® Enterprise, the only PKI platform that deploys fast, runs anywhere, and scales on-demand — so you can issue and manage thousands, even billions of certificates, no problem. Powered by the most trusted and widely used open-source PKI, EJBCA Enterprise empowers teams to establish trust with identity-first security for every human and machine, anywhere. Replace legacy CA solutions with a flexible and scalable PKI platform to issue and manage certificates for devices, workloads, and users. Embed certificate-based identity into thousands or millions of connected products with a fast and scalable PKI solution.
  • 4
    QuarkLink

    QuarkLink

    Crypto Quantique

    QuarkLink is a comprehensive IoT device security platform developed by Crypto Quantique, designed to simplify and accelerate the implementation of security-by-design principles across embedded systems. It provides a Software-as-a-Service (SaaS) solution that integrates seamlessly into existing software development workflows, including CI/CD pipelines, to manage device identities, secure boot processes, over-the-air firmware updates, and key and certificate lifecycle management. QuarkLink supports a wide range of hardware platforms, from microcontrollers running bare metal to industrial PCs operating Linux, and is compatible with major semiconductor manufacturers. QuarkLink's modular architecture allows for independent use of its components, including provisioning and secure boot, OTA updates and service onboarding, and fleet and certificate management.
  • 5
    Cisco Cyber Vision
    The deeper integration between IT, cloud and industrial control networks (ICS) is exposing your industrial operations to cyber threats. Cisco Cyber Vision has been specifically developed for OT and IT teams to work together to ensure production continuity, resilience and safety. You can now deploy Industrial Internet of Things (IIoT) technologies and capture the benefits of your industry digitization efforts. Kick-start your OT security project by building an accurate list of all your industrial assets, communication patterns and network topologies. Feed your SOC (security operations center) with OT context and leverage the time and money you have invested in IT cybersecurity to secure your OT network. Take OT security to the next level: Have detailed information to comply with regulations and enable effective collaboration between OT and IT experts.
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