Compare the Top Free IoT Security Software as of October 2025

What is Free IoT Security Software?

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 Free IoT Security software currently available using the table below. This list is updated regularly.

  • 1
    ManageEngine Endpoint Central
    ManageEngine Endpoint Central is built to secure the digital workplace while also giving IT teams complete control over their enterprise endpoints. It delivers a security-first approach by combining advanced endpoint protection with comprehensive management, allowing IT teams to manage the entire endpoint lifecycle, all from a single console. With automated patching across Windows, Mac, Linux and 1,000+ third-party applications, it ensures vulnerabilities are mitigated before attackers can exploit them. Its next-gen antivirus (NGAV) feature, powered by AI-driven behavioural detection, provides 24/7 protection against ransomware, malware, and zero-day threats. Endpoint Central further strengthens enterprise defenses with a broad set of security capabilities, including vulnerability assessment and mitigation, peripheral device control, data loss prevention, application control, endpoint privilege management, encryption with FileVault and BitLocker, and browser security.
    Starting Price: $795.00/one-time
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  • 2
    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.
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