Compare the Top Free IT Security Software as of December 2025

What is Free IT Security Software?

IT security software is designed to protect information technology (IT) systems, networks, and data from cyber threats, such as malware, hacking, and unauthorized access. These tools provide various features such as antivirus protection, firewalls, encryption, intrusion detection and prevention systems, and vulnerability management to ensure the integrity, confidentiality, and availability of sensitive information. IT security software helps organizations detect, prevent, and respond to security incidents, mitigate risks, and ensure compliance with industry regulations. It is critical for businesses and individuals to safeguard against cyberattacks, data breaches, and other security vulnerabilities. Compare and read user reviews of the best Free IT Security software currently available using the table below. This list is updated regularly.

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    Kaleido

    Kaleido

    Kaleido

    Create blockchain and digital asset solutions without the cost and complexity of building from scratch. Start small and rapidly move into production. Choose from popular cloud properties and hybrid deployment options, geographic regions, protocols, consensus mechanisms and more, all at the click of a button. Makes blockchain just another endpoint so you can accelerate development and deployment of your dapps. A robust, easy-to-use interface to manage everything about your blockchain networks and environments. Onboarding and scaling are built-in and instantaneous with automated tools and workflows so you can grow your business network with ease. Nodes, data and key materials are managed individually by each member. Scale the network with ease using distributed network ownership or single proxy operator. Manage your networks and memberships, users, environments, and more.
    Starting Price: $‍ 0.15 per node per hour
  • 2
    Concordium

    Concordium

    Concordium

    A blockchain that’s compliance ready with today’s and tomorrow’s economies. That enables private and public transactions. That offers high throughput, fast transactions, and predictable fees. That allows businesses, developers, and traders to harness blockchain’s true power and potential. Concordium’s decentralised blockchain technology is the first with layer-one ID built into the protocol. This means it offers forward-thinking businesses, application developers, and cryptocurrency traders unrivalled security, privacy, transparency and most importantly, compliance with regulations, if and when these come through. Utilizing zero-knowledge-proofs (ZKP) allows parties to verify information without exchanging or storing that information on-chain other than hash functions, so users can trust that their confidential business will become no one else’s business.
    Starting Price: Free
  • 3
    FYEO

    FYEO

    FYEO

    FYEO secures enterprises and individuals from cyber attacks with security audits, real-time threat monitoring and intelligence, anti-phishing solutions and decentralized identity management. End-to-end blockchain security services and auditing for Web3. Protect your organization and employees from cyberattacks with FYEO Domain Intelligence. Decentralized password management and identity monitoring services made simple. End user breach and phishing alert system. Uncover vulnerabilities and protect both your application and your users. Identify and address cyber risks across a company before you take on the liability. Protect your company from ransomware, malware, insider threats, and more. Our team works collaboratively with your development team to identify potentially critical vulnerabilities before they can be exploited by a malicious actor. FYEO Domain Intelligence delivers real-time cyber threat monitoring and intelligence to help secure your organization.
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