Compare the Top IT Security Software for Linux as of June 2025

What is IT Security Software for Linux?

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 IT Security software for Linux currently available using the table below. This list is updated regularly.

  • 1
    SpamTitan

    SpamTitan

    TitanHQ

    SpamTitan email security is an email spam filter for businesses, smbs, MSPs, and schools. SpamTitan email security blocks spam as well as phishing and day-zero attacks, viruses, malware, ransomware, and other email threats. Helps control mail flow, clean it, and protect against unwanted email. We provide easy-to-use yet advanced email security for businesses, smbs and MSPs that are Office365 friendly. SpamTitan - Premium functionality included: • CEO Impersonation protection • Phishing/ Spear phishing protection • Link analysis • Full Sandboxing • Zero Day Attacks protection • Mail Spooling • Spoofing protection • Malware and Ransomware protection • SPF/DKIM/DMARC checking • Encryption • Fully multitenant environment • Ability to rebrand the entire UI • Full REST API: • Comprehensive support and set up docs Try a FREE, fully supported trial of SpamTitan Email Security today.
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    Starting Price: $2.14/user/month
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  • 2
    Kiuwan Code Security
    Security Solutions For Your DevOps Process. Automatically scan your code to identify and remediate vulnerabilities. Compliant with the most stringent security standards, such as OWASP and CWE, Kiuwan Code Security covers all important languages and integrates with leading DevOps tools. Effective static application security testing and source code analysis, with affordable solutions for teams of all sizes. Kiuwan includes a variety of essential functionality in a single platform that can be integrated directly into your internal development infrastructure. Fast Vulnerability Detection: Easy and instant setup. Start scanning and get results in just minutes. DevOps Approach To Code Security: Integrate Kiuwan with your Ci/CD/DevOps pipeline to automate your security process. Flexible Licensing Options: Plenty of options, one time scans or continuous scanning. Kiuwan also offers a Saas or On-Premise model.
  • 3
    Imunify360

    Imunify360

    CloudLinux, Inc.

    Imunify360 is a security solution for web-hosting servers. Imunify360 goes beyond antivirus and WAF and is a combination of an Intrusion Prevention and Detection system, a Application Specific Web Application Firewall, Real-time Antivirus protection, a Network Firewall, and Patch Management components in one security suite. Imunify360 is a fully-automated solution and it collects all statistics under an intuitive dashboard.
    Starting Price: $12
  • 4
    SKUDONET

    SKUDONET

    SKUDONET

    Reliable, Scalable, and Secure Load Balancing Formerly known as Zevenet, SKUDONET Enterprise Edition is an advanced and highly scalable Open Source Application Delivery and Security Platform designed to handle large volumes of traffic across any environment—whether physical, virtual, or cloud-based for modern IT infrastructures. Built on the Linux Debian system, SKUDONET offers a robust platform that integrates advanced security and performance features, offering a cost-effective alternative to other solutions on the market. Key Features & Benefits: ✔ High Availability – Prevents downtime with intelligent traffic balancing and clustering ✔ Advanced Security – Includes DoS protection, SSL offloading, and L7 filtering to enhance cybersecurity ✔ High Scalability – Multi-core processing, optimized packet handling, and support for high-throughput environments ✔ Flexible Deployment – Available for bare metal, virtual machines, and cloud platforms with BYOL (AWS, DigitalOcean)
    Starting Price: $1736/year/appliance
  • 5
    Invicti

    Invicti

    Invicti Security

    Application security is noisy and overly complicated. The good news: you can relieve that unnecessary noise and dramatically reduce your risk of attacks with Invicti. Keeping up with security is more manageable with accurate, automated testing that scales as your needs shift and grow. That's where Invicti shines. With a leading dynamic application security testing solution (DAST), Invicti helps teams automate security tasks and save hundreds of hours each month by identifying the vulnerabilities that really matter. Combining dynamic with interactive testing (DAST + IAST) and software composition analysis (SCA), Invicti scans every corner of an app to find what other tools miss. With asset discovery, it's easier to discover all web assets — even ones that are lost, forgotten, or created by rogue departments. Through tried-and-true methods, Invicti helps DevSecOps teams get ahead of their workloads to hit critical deadlines, improve processes, and communicate more effectively.
  • 6
    KACE by Quest

    KACE by Quest

    Quest Software

    KACE® by Quest supports your unified endpoint management (UEM) strategy by helping you discover and track every device in your environment, automate administrative tasks, keep compliance requirements up-to-date and secure your network from a range of cyberthreats. Discover, manage and secure all your endpoints from one console as you co-manage your traditional and modern endpoints, including Windows, Mac, Linux, ChromeOS, and iOS and Android devices. KACE is a Unified Endpoint Management solution that offers a single point of control for managing IT systems across the entire organization, inside or outside your network. This comprehensive solution takes the stress out of keeping devices secure and compliant so you can do more.
    Starting Price: As low as $3/mo/device
  • 7
    Acunetix

    Acunetix

    Invicti Security

    As the market leader in automated web application security testing, Acunetix by Invicti is the go-to security tool for Fortune 500 companies. DevSecOps teams can cut through the noise to uncover unseen risks and mitigate dangerous exploits, detecting and reporting on a wide array of vulnerabilities. With an industry-leading crawler that fully supports HTML5, JavaScript, and Single-page applications, Acunetix enables the auditing of complex, authenticated applications for deeper insight into an organization's risk posture. It's a leader for a reason: the technology behind Acunetix delivers the only product on the market that can automatically detect out-of-band vulnerabilities to enable comprehensive management, prioritization, and control for vulnerability threats by criticality. Plus, it's available both online and as an on-prem solution, integrating with popular issue trackers and WAFs so that DevSecOps teams don't have to slow down when building innovative apps.
  • 8
    Artica Proxy

    Artica Proxy

    Artica Tech

    Artica project began in 2004 and stemmed from ideas about how to improve the Open Source security solutions available at the time, which were difficult and often expensive to implement and maintain. Artica provides a Powerful user-friendly Web interface and it’s designed to allow every IT administrator, with or without Linux knowledges, to install and maintain network service, like Proxy service, Reverse-Proxy service, DNS service, DNS Filter service, Firewall service, IDS service, SMTP service and more. Today, with around 110.000 servers installed worldwide, Artica solutions are used from small to large enterprises and in Public Government Services
    Starting Price: €100
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