Best Free IT Security Software of 2025

Google Cloud Platform provides comprehensive IT security solutions aimed at safeguarding cloud workloads, featuring tools for identity management, encryption, and threat detection. Its layered security strategy enables organizations to effectively protect their infrastructure, data, and applications. With resources such as Google Cloud Identity & Access Management (IAM) and the Google Cloud Security Command Center, companies can effectively address risks and maintain compliance. New users are offered $300 in complimentary credits to experiment with, test, and deploy workloads, allowing them to assess the platform's security capabilities without any initial investment. GCP’s security offerings encompass automated patch management, vulnerability assessments, and secure authentication methods to help lessen risks and minimize the attack surface. Additionally, the platform is built to comply with strict regulatory standards, ensuring that businesses can fortify their cloud environments while meeting industry requirements.

Empower Your Team to Attain Top-Tier IT Security Discover a comprehensive IT Security solution featuring SIEM, endpoint oversight, round-the-clock monitoring, and automated responses designed to simplify operations, enhance visibility, and accelerate response times. We take on the demanding aspects of security, allowing you to reclaim valuable time in your schedule. With ready-to-use detections, curated alerts, and established response protocols, your team can unlock genuine IT security benefits with Blumira. Rapid Implementation, Instant Impact: Seamlessly integrates with your existing tech infrastructure and can be fully set up within hours, without any ramp-up time. Unlimited Data Ingestion: Enjoy predictable pricing with unrestricted data logging to support complete lifecycle detection. Streamlined Compliance: Benefit from one year of data retention, pre-designed reports, and continuous automated monitoring. Exceptional Support with 99.7% Customer Satisfaction: Access Solution Architects for product assistance, a dedicated Incident Detection and Response Team developing new detections, and around-the-clock SecOps support.

IT administrators and managers appreciate Access Server because OpenVPN simplifies network security and secure remote access, catering to both seasoned IT professionals and newcomers to the field. If you have a background in Linux, Access Server is tailored for you. It offers a straightforward and budget-friendly solution to enhance your network security within a self-hosted setup.

Combat threats like Magecart, formjacking, token hijacking, and cryptojacking effectively! By implementing a proxy-based framework, a proxy operates between the user’s browser and third-party scripts, enabling it to monitor the code retrieved by the browser. This client-side proxy ensures constant, comprehensive visibility and oversight of every third-party script running in the user's browser at all times, without relying on sampling techniques.

Criminal IP is a cyber threat intelligence search engine that detects vulnerabilities in personal and corporate cyber assets in real time and allows users to take preemptive actions. Coming from the idea that individuals and businesses would be able to boost their cyber security by obtaining information about accessing IP addresses in advance, Criminal IP's extensive data of over 4.2 billion IP addresses and counting to provide threat-relevant information about malicious IP addresses, malicious links, phishing websites, certificates, industrial control systems, IoTs, servers, CCTVs, etc. Using Criminal IP’s four key features (Asset Search, Domain Search, Exploit Search, and Image Search), you can search for IP risk scores and vulnerabilities related to searched IP addresses and domains, vulnerabilities for each service, and assets that are open to cyber attacks in image forms, in respective order.

The CLEAR™ Cryptosystem is a FIPS-140-3 validated encryption SDK designed to secure files, streaming media, databases, and network communications with cutting-edge, programmable encryption technology. Fully compatible with all modern computing platforms, CLEAR™ provides a simple, turnkey solution for integrating advanced encryption into existing security systems. With Post-Quantum Cryptography (PQC) capabilities, it delivers future-proof protection against emerging cybersecurity threats, ensuring your data is secured with the strongest available encryption methods. Key Features: • PQC Encryption Strength ( 512bit - 10,240bit) • Ultra Low-Latency Streaming (< 11µs / Packet) • Hyperkey™ Technology with embedded ACL • Multi-Factor / Bio-Metric Symmetric Keys • Plug-N-Play Entropy - CSRNG, QRNG, HRNG Benefits: • Pass cybersecurity audits with best-in-class tools • Share data securely via Sharepoint, Dropbox, etc. • Protect legacy gear and outdated network equipment • Extend protection to files in 3rd party portals • Future lasting power - long-term data archival

Enhance IT Security with New Relic: Protect your organization with cutting-edge threat detection and robust safeguards. Boost your IT security framework using New Relic's powerful observability platform, which offers software engineers extensive visibility and control over your security environment. Our solution features real-time monitoring and sophisticated threat detection, enabling you to proactively spot and mitigate vulnerabilities before they affect your operations. Effortlessly integrate security insights into your overall IT management to maintain compliance, reduce risks, and secure essential assets. Improve your incident response strategies, streamline security processes, and align your security initiatives with your organizational goals. With New Relic, strengthen your enterprise's defenses against emerging threats and cultivate a proactive security and resilience mindset.

ManageEngine's Endpoint Central, formerly Desktop Central, is a Unified Endpoint Management Solution that manages enterprise mobility management, including all features of mobile app management and mobile device management, as well as client management for a wide range of endpoints such as mobile devices, laptops computers, tablets, servers, and other machines. ManageEngine Endpoint Central allows users to automate their desktop management tasks such as installing software, patching, managing IT assets, imaging, and deploying OS.

Site24x7 provides unified cloud monitoring to support IT operations and DevOps within small and large organizations. The solution monitors real users' experiences on websites and apps from both desktop and mobile devices. DevOps teams can monitor and troubleshoot applications and servers, as well as network infrastructure, including private clouds and public clouds, with in-depth monitoring capabilities. Monitoring the end-user experience is done from more 100 locations around the globe and via various wireless carriers.

Chrome Enterprise offers a comprehensive suite of advanced security measures that are essential for modern enterprise IT security frameworks. With features like sandboxing, site isolation, and real-time Safe Browsing notifications, Chrome effectively shields users from various online dangers such as malware, ransomware, and phishing attacks. Organizations can manage and personalize security settings through the Admin console, enabling them to implement strict browsing policies, limit extensions, and ensure adherence to both internal guidelines and regulatory standards. Additionally, Chrome's security capabilities work seamlessly with endpoint protection and identity management systems, creating a robust defense mechanism. This multifaceted security strategy empowers organizations to proactively counteract emerging threats while preserving operational flexibility, and it facilitates easier compliance with regulations like GDPR and HIPAA, among others.

Frontegg is a developer platform that enables self-service, security and enterprise-capabilities through a rich user-management interface, freeing up creativity and differentiation. Frontegg's platform provides more than just authentication and SSO via an embedded login-box. It also offers an Admin Portal that serves as the Settings area for your users. The Admin Portal lets your users manage all aspects of their accounts. Users can assign roles and permissions to users and teams, create and assign roles and permissions, view audit logs, subscribe for webhooks, and more. Frontegg interfaces can be embedded within your app as a UI layer and become a customer-facing management interface. This interface is available for both personal and workspace level. Frontegg can also power-up your backend with rich SDKs that are available in various languages and frameworks.

Auth0 takes a modern approach to Identity and enables organizations to provide secure access to any application, for any user. Auth0 is highly customizable, and simple yet flexible. Safeguarding billions of login transactions each month, Auth0 delivers convenience, privacy, and security so customers can focus on innovation. With Auth0, you can rapidly integrate authentication and authorization for web, mobile, and legacy applications, with new Fine Grained Authorization (FGA) that goes beyond role-based access control.

Cloud-based solution for observability that helps businesses manage and track workload and performance through a single dashboard. Monitor all the services you run on your cloud without compromising cost, granularity or scale. Groundcover is a cloud-native APM solution that makes observability easy so you can focus on creating world-class products. Groundcover's proprietary sensor unlocks unprecedented granularity for all your applications. This eliminates the need for costly changes in code and development cycles, ensuring monitoring continuity.

Aikido is the all-in-one security platform for development teams to secure their complete stack, from code to cloud. Aikido centralizes all code and cloud security scanners in one place. Aikido offers a range of powerful scanners including static code analysis (SAST), dynamic application security testing (DAST), container image scanning, and infrastructure-as-code (IaC) scanning. Aikido integrates AI-powered auto-fixing features, reducing manual work by automatically generating pull requests to resolve vulnerabilities and security issues. It also provides customizable alerts, real-time vulnerability monitoring, and runtime protection, enabling teams to secure their applications and infrastructure seamlessly.

Guardz is the unified cybersecurity platform purpose-built for MSPs. We consolidate the essential security controls, including identities, endpoints, email, awareness, and more, into one AI-native framework designed for operational efficiency. Our identity-centric approach connects the dots across vectors, reducing the gaps that siloed tools leave behind so MSPs can respond to user risk in real time. With 24/7 AI + human-led MDR, Guardz utilizes agentic AI to triage at machine speed while expert analysts validate, mitigate, and guide response, giving MSPs scalable protection without adding headcount.

Control D is a customizable DNS filtering and traffic redirection platform that leverages Secure DNS protocols like DNS-over-HTTPS, DNS-over-TLS and DNS-over-QUIC, with support for Legacy DNS. With Control D you can: block malicious threats, block unwanted types of content network wide (ads & trackers, IoT telemetry, adult content, socials, and more), redirect traffic using transparent proxies and gain visibility on network events and usage patterns, with client level granularity. Think of it as your personal Authoritative DNS resolver for the entire Internet that gives you granular control over what domains get resolved, redirected or blocked.

OpManager is the ideal end-to-end network monitoring tool for your organization's network. With OpManager, you can keep a close eye on health, performance, and availability levels of all network devices. This includes monitoring switches, routers, LANs, WLCs, IP addresses and firewalls. Insights into your hardware health and performance; monitor CPU, memory, temperature, disk usage, and more to improve efficiency. Seamlessly manage faults and alerts with instant notifications and detailed logs. Streamlined workflows facilitate easy set-up to execute quick diagnosis and corrective measures. The solution also comes with powerful visualization tools such as business views, 3d data center views, topology maps, heat maps, and customizable dashboards. Get proactive in capacity planning and decision-making with over 250 predefined reports covering all important metrics and areas in your network. Overall, OpManager's detailed management capabilities make it the ideal solution for IT administrators to achieve network resiliency and efficiency.

Action1 redefines patch management by enabling enterprises to rapidly discover and remediate vulnerabilities with a 99% patch success rate solution. Streamline your third-party patching, including custom software, through Action1’s Software Repository maintained in-house by security experts, and manage OS updates – fully integrated altogether with full feature-parity and uniformity. Identify vulnerabilities in real-time and remediate them by applying available patches, removing unsupported or legacy software, or centralizing documentation of compensating controls for vulnerabilities that cannot be patched. Optimize network traffic usage when large software packages up to 32Gb in size are deployed on the same network and deliver patches faster thanks to Action1’s P2P Distribution technology. Action1 is the easiest-to-use patch management platform on the market, which you can set up in 5 minutes and automate your patching right away through its intuitive UI. Thanks to its cloud-native architecture, Action1 is infinitely scalable and works equally well for office-based and remote employee endpoints, servers, and cloud workloads, requiring no VPN. Action1 is the first patch management vendor to achieve SOC 2, ISO 2

GoAnywhere MFT offers secure file transfer for businesses. GoAnywhere MFT software can be deployed on-premise, in cloud or hybrid environments. It allows organizations to securely exchange data between employees, customers, trading partners, and systems. GoAnywhere MFT won the Cybersecurity Excellence Award in Secure File Transfer.

Unimus is a powerful network automation, configuration backup, and change management solution designed to simplify network operations for businesses of all sizes. Supporting 400+ device types across 150+ vendors, Unimus is a network-agnostic platform that eliminates manual network tasks while enhancing security and reliability. With automated configuration backups, Unimus ensures seamless disaster recovery, giving IT teams quick access to historical versions and real-time change tracking. Its network auditing features provide instant visibility into configuration consistency, compliance, and security risks. Change management is simplified with automatic change detection, detailed version history, and customizable notifications. Unimus' intuitive web-based interface makes it easy to manage networks without requiring deep technical expertise, while its integrated CLI access allows for real-time troubleshooting and command execution. Whether you're looking to automate bulk configuration changes, perform firmware upgrades, or improve network visibility, Unimus provides a scalable, cost-effective solution for modern network infrastructures.

Proton Pass protects your passwords and identities with end-to-end encryption. Proton Pass was developed by the same team that created Proton Mail - the world's largest encrypted mail service. Proton is recommended by the United Nations to share highly sensitive data. Our encryption is open-source and battle-tested. Proton Pass was the first password manager created by a security firm with a privacy-first approach. Join the millions who have already signed up to Proton in order to protect their data.

At ACI Learning, we don’t just teach IT and cybersecurity—we prepare you to thrive in the real world. Our training is hands-on, outcome-focused, and built to give you the practical skills that matter most, from immersive labs and certification prep to expert-led lessons by pros who’ve been in your shoes. Whether you’re leading a team or leveling up your own career, myACI—our dynamic training platform—turns learning into doing. It’s where knowledge meets performance. With virtual labs, engaging video content, and gamified elements like skill points and microcredentials, learners stay motivated and career-ready. Managers get powerful dashboards and reporting tools to track progress and align training with business goals. Trusted by companies around the world, myACI also offers Marketplace access to expand learning beyond IT and cyber. Scalable, flexible, and built for today’s learners, ACI Learning helps you grow your people, boost retention, and show the ROI of every training dollar.

Plaid is an international data network that powers tools used by millions of people to live a more healthy financial life. Our ambition is to facilitate an inclusive, competitive and mutually beneficial financial systems by simplifying payments and revolutionizing lending. Plaid works with more than 8,000 companies, including fintechs such as Venmo and SoFi and several Fortune 500 companies, to give people more control and choice over how they manage money. Plaid is headquartered in San Francisco and its network spans more than 12,000 institutions throughout the US, Canada UK and Europe.

Safetica Intelligent Data Security protects sensitive enterprise data wherever your team uses it. Safetica is a global software company that provides Data Loss Prevention and Insider Risk Management solutions to organizations. ✔️ Know what to protect: Accurately pinpoint personally identifiable information, intellectual property, financial data, and more, wherever it is utilized across the enterprise, cloud, and endpoint devices. ✔️ Prevent threats: Identify and address risky activities through automatic detection of unusual file access, email interactions, and web activity. Receive the alerts necessary to proactively identify risks and prevent data breaches. ✔️ Secure your data: Block unauthorized exposure of sensitive personal data, trade secrets, and intellectual property. ✔️ Work smarter: Assist teams with real-time data handling cues as they access and share sensitive information.

Thinfinity Workspace 7.0's Technical Highlights: - Progressive Web App (PWA) technology for a seamless user experience - Integrated Thinfinity VNC, VirtualUI, and z/Scope for maximum versatility - HTML5 terminal emulation supporting DEC terminals, TN 5220, and TN 3270 protocols - Robust enterprise-grade audit logs for security and compliance management - Proprietary VNC protocol for real-time monitoring and troubleshooting IMPROVE USER EXPERIENCE - Deliver business-critical apps, desktops and files from a single web portal. - Provide simplified remote browser access for your users, while confining them to only the resources that they need. SIMPLIFY IT AND AVOID VPNs - Forget traditional VPN deployments and complexities. - Enable access from Chromebooks, mobile devices or any computer with a Web Browser. Zero setup. KEEP YOUR BUSINESS SECURE - Use enterprise-grade encrypted connections. - Integrate with your existing and external identity platforms. - Apply 2FA or MFA policies with all identity providers.