Compare the Top IT Security Software for Linux as of November 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
    Domotz

    Domotz

    Domotz

    Domotz is an IT Infrastructure Monitoring and Management Software on a mission to provide all service providers, MSPs, integrators, and enterprises with affordable network monitoring software that enables you to work smarter, build customer loyalty, and solve problems faster than ever. Domotz enables the complete solution to cost-effectively manage and monitor your customers’ networks with a plug-and-play setup, a friendly UX, and a comprehensive feature set accessible from any desktop browser or mobile device. Monitor any network and IT infrastructure with our powerful, affordable, user-friendly network monitoring software. All the features you need to manage and monitor your IT infrastructure proactively.
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  • 3
    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
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