List of the Top 20 Zero Trust Security Software for Linux in 2025

Cloudbrink's secure access service significantly enhances both employee productivity and morale. For IT and business executives facing challenges with remote employees due to unreliable network performance, Cloudbrink’s High-Availability as a Service (HAaaS) offers a cutting-edge zero-trust access solution that provides a remarkably fast, in-office-like experience for today’s hybrid workforce, regardless of their location. Unlike conventional ZTNA and VPN options that compromise security for performance, leading to employee frustration and decreased productivity, Cloudbrink’s solution secures user connections while effectively addressing the end-to-end performance challenges that others overlook. The Automated Moving Target Defense security provided by Cloudbrink stands out among other secure access solutions. Recognized by Gartner as the "future of security," Cloudbrink is at the forefront of innovation in this field. By dynamically altering the attack surface, it becomes considerably more difficult for adversaries to target a Cloudbrink user’s connection. This includes rotating certificates every eight hours or less, eliminating fixed Points of Presence (PoPs) by allowing users to connect to three temporary FAST edges, and continually changing the mid-mile path. If you seek the quickest and most secure solution for remote access connectivity, Cloudbrink is undoubtedly the answer you’ve been searching for. With Cloudbrink, you can ensure a seamless experience for your remote teams while maintaining the highest security standards.

The cornerstone of cybersecurity lies in password security. Keeper offers a robust password security platform designed to shield your organization from cyber threats and data breaches associated with password vulnerabilities. Studies indicate that a staggering 81% of data breaches stem from inadequate password practices. Utilizing a password security solution is a cost-effective and straightforward method for businesses to tackle the underlying issues that lead to most data breaches. By adopting Keeper, your organization can greatly lower the chances of experiencing a data breach. Keeper generates strong passwords for every application and website, ensuring they are securely stored across all devices. Each employee is provided with a personal vault to manage and safeguard their passwords, credentials, and files, along with sensitive client information. This alleviates the hassle of remembering or resetting passwords and eliminates the need to reuse them. Additionally, maintaining industry compliance is facilitated by stringent and customizable role-based access controls, inclusive of two-factor authentication, usage audits, and detailed event reporting. Furthermore, the implementation of Keeper not only enhances security but also promotes a culture of accountability and vigilance within your organization.

Embrace a Zero Trust architecture through OpenVPN Access Server. Our self-managed solution empowers organizations of any scale to implement fundamental zero trust principles. Move past the limitations of safeguarding only the internal corporate environment and minimize your vulnerability to threats. With Access Server, you can secure employees connecting via home or public WiFi and using SaaS applications beyond your organization's network boundary. Additionally, we equip you with all the necessary tools and features to establish a robust zero trust network that effectively prevents or greatly reduces potential cyberattacks.

Heimdal® Endpoint Detection and Response is our exclusive multi-faceted service that offers exceptional capabilities for prevention, threat hunting, and remediation. This service integrates the most cutting-edge threat-hunting technologies available, including Heimdal Next-Gen Antivirus, Heimdal Privileged Access Management, Heimdal Application Control, Heimdal Ransomware Encryption Protection, Heimdal Patch & Asset Management, and Heimdal Threat Prevention. With six modules functioning together harmoniously under a single platform and agent, Heimdal Endpoint Detection and Response provides comprehensive cybersecurity layers necessary for safeguarding your organization against both familiar and unfamiliar online and internal threats. Our advanced product enables rapid and precise responses to complex malware, ensuring that your digital assets are protected while also maintaining your organization's reputation. By consolidating these capabilities, we deliver an efficient solution that addresses the evolving challenges of cybersecurity effectively.

To effectively combat ransomware, IT professionals must implement strategies that go beyond merely monitoring for threats. ThreatLocker offers a solution by minimizing attack surfaces through policy-driven endpoint security, shifting the focus from just blocking recognized threats to preventing anything that isn’t expressly permitted. By incorporating features like Ringfencing and other robust controls, organizations can bolster their Zero Trust framework and effectively thwart attacks that exploit existing resources. Explore the comprehensive suite of ThreatLocker’s Zero Trust endpoint security solutions, which includes Allowlisting, Ringfencing, Elevation Control, Storage Control, Network Access Control, Unified Audit, ThreatLocker Ops, Community, Configuration Manager, and Health Center, to enhance your cybersecurity posture today. This proactive approach not only safeguards your network but also empowers your team to maintain greater control over security protocols.

Kasm Workspaces enables you to access your work environment seamlessly through your web browser, regardless of the device or location you are in. This innovative platform is transforming the delivery of digital workspaces for organizations by utilizing open-source, web-native container streaming technology, which allows for a contemporary approach to Desktop as a Service, application streaming, and secure browser isolation. Beyond just a service, Kasm functions as a versatile platform equipped with a powerful API that can be tailored to suit your specific requirements, accommodating any scale of operation. Workspaces can be implemented wherever necessary, whether on-premise—including in Air-Gapped Networks—within cloud environments (both public and private), or through a hybrid approach that combines elements of both. Additionally, Kasm's flexibility ensures that it can adapt to the evolving needs of modern businesses.

UTunnel Secure Access offers solutions including Cloud VPN, ZTNA, and Mesh Networking to facilitate secure remote connections and reliable network performance. ACCESS GATEWAY: Our Cloud VPN as a Service allows for the rapid deployment of VPN servers on either Cloud or On-Premise setups. By employing OpenVPN and IPSec protocols, it ensures secure remote connections complemented by policy-driven access controls, enabling businesses to establish a robust VPN network effortlessly. ONE-CLICK ACCESS: The Zero Trust Application Access (ZTAA) feature revolutionizes secure interaction with internal business applications such as HTTP, HTTPS, SSH, and RDP. Users can conveniently access these services via their web browsers without the necessity of any client-side applications. MESHCONNECT: This solution, combining Zero Trust Network Access (ZTNA) and mesh networking, offers detailed access controls tailored to specific business network resources and fosters the formation of secure, interconnected business networks for enhanced collaboration. SITE-TO-SITE VPN: Additionally, the Access Gateway allows for the establishment of secure IPSec Site-to-Site tunnels, which facilitate connections between UTunnel's VPN servers and other network infrastructure components like gateways, firewalls, routers, and unified threat management (UTM) systems, thereby enhancing overall network security. By integrating these features, UTunnel Secure Access is committed to providing comprehensive solutions that meet the evolving needs of modern businesses.

Cipherise provides developers with a robust framework for creating intuitive authentication systems. With our solution, users will enjoy an exceptional experience that prioritizes security without complexity. Multi-Factor Authentication (MFA) combines simplicity with high security, allowing users to authenticate without the hassle of complex passwords. Forget about juggling complicated usernames or the risks of credential sharing. Our Omni Channel approach ensures a seamless user experience across all devices, whether mobile, tablet, laptop, or PC. This innovation effectively mitigates the threat of hackers targeting centralized credential repositories. Bi-Directional authentication enhances security by requiring services to verify users before they authenticate themselves. Additionally, our Mobile Native feature protects your valuable intellectual property and content, making it effortless for customers to register and access your materials from any device they choose. Overall, the combination of these features creates a secure and user-friendly authentication environment that benefits both developers and users alike.

GoodAccess is a cybersecurity solution focused on SASE/SSE, aimed at assisting mid-sized companies in effortlessly adopting Zero Trust Architecture (ZTA), no matter the intricacy or scale of their IT systems. Utilizing a Low-Code/No-Code methodology, GoodAccess allows for rapid, hardware-free implementations that can be completed within hours or days, thereby removing the necessity for extensive internal IT skills. The platform provides smooth integration with both contemporary cloud applications and older systems, ensuring the protection of vital resources for teams working remotely or in hybrid settings. Targeting organizations with employee counts ranging from 50 to 5000 across diverse sectors, GoodAccess is particularly ideal for those leveraging multi-cloud and SaaS frameworks, enhancing their overall security posture significantly. Additionally, this solution empowers companies to stay agile and secure in an increasingly digital landscape, fostering a robust defense against emerging cyber threats.

Portnox is a provider of Network Access Control (NAC) solutions, which fall under the broader category of cybersecurity, particularly focusing on network security. This technology empowers organizations to implement tailored policies governing the conditions under which endpoints, such as desktops, laptops, and smartphones, can connect to their corporate networks. NAC serves to enhance the visibility of IT security teams, allowing them to identify each device attempting to access the network, as well as to determine the specific type of device and the access method being utilized, whether through Wi-Fi, wired connections, or VPN. By leveraging NAC, organizations can bolster their overall security posture and ensure that only compliant devices gain network access. This capability is crucial in today’s digital landscape, where the threat landscape is constantly evolving.

Fortinet emerges as a key global player in the cybersecurity sector, notable for its comprehensive and integrated approach to safeguarding digital infrastructures, devices, and applications. Founded in 2000, the organization provides a wide range of products and services, including firewalls, endpoint protection, intrusion prevention systems, and secure access solutions. A cornerstone of its offerings is the Fortinet Security Fabric, a unified platform that seamlessly combines various security tools to enhance visibility, automation, and provide real-time threat intelligence across the entire network. Renowned for its dependability among businesses, government agencies, and service providers worldwide, Fortinet prioritizes innovation, scalability, and performance, thereby reinforcing its defenses against the constantly shifting landscape of cyber threats. In addition to its protective capabilities, Fortinet’s dedication to enabling digital transformation and ensuring business continuity highlights its essential role within the cybersecurity landscape, positioning itself as a trusted partner for organizations striving to navigate modern security challenges effectively. With a focus on proactive measures and cutting-edge solutions, Fortinet continues to adapt and evolve to meet the demands of an increasingly complex digital world.

InstaSafe is transforming the landscape of secure access to contemporary networks through the implementation of Zero Trust principles in its security solutions, which facilitate smooth access to various platforms including cloud applications, SAP applications, on-site data, IoT devices, and numerous innovative use cases. By shifting away from conventional VPN-based ideas of a network perimeter, InstaSafe redefines security by placing the perimeter around individual users and the devices they utilize. This Zero Trust methodology adopted by InstaSafe upholds a "never trust, always verify" stance on privileged access, emphasizing verification independent of network location. Consequently, this approach not only enhances security but also adapts to the evolving needs of modern digital environments.

XplicitTrust Network Access offers a comprehensive Zero Trust Network Access (ZTNA) solution that enables users to securely access applications from any location. By seamlessly integrating with existing identity providers, it facilitates single sign-on and multi-factor authentication, utilizing factors such as user identity, device security, and geographic location. Furthermore, the platform is equipped with real-time network diagnostics and centralized asset tracking, enhancing overall visibility and management. Clients can benefit from a hassle-free setup, as there is no need for configuration, and it is designed to work across various operating systems, including Windows, MacOS, and Linux. XplicitTrust ensures high levels of security through robust encryption, end-to-end protection, automatic key rotation, and context-aware identification. Additionally, it accommodates secure connections and scalable access for a variety of applications, including Internet of Things (IoT) solutions, legacy systems, and remote desktop environments, making it a versatile choice for modern businesses. Overall, this solution is tailored to meet the evolving demands of today's digital landscape.

Banyan offers a robust, secure solution tailored for enterprise application and infrastructure access. This innovative platform presents a cloud-based zero trust access approach as an alternative to traditional network access tools like VPNs, bastion hosts, and gateways. Users can effortlessly access infrastructure through a single click, all while keeping private networks protected from exposure. The installation is user-friendly, promoting high-performance connectivity. It automatically facilitates access to essential services, ensuring the integrity of private networks remains intact. Users can swiftly connect to SSH/RDP, Kubernetes, and numerous database environments, including well-known hosted applications such as GitLab, Jenkins, and Jira; additionally, a command-line interface is provided for convenience. This solution enhances collaboration in both on-premises and cloud environments without the hassle of complex IP whitelisting. Furthermore, it streamlines deployment, onboarding, and management with tag-based resource discovery and publishing features. The user-to-application segmentation is cloud-based, emphasizing availability, scalability, and ease of management. The platform significantly improves user experience by offering agentless, BYOD, and passwordless access, all supported by an intuitive one-click service catalog that simplifies application access even further. Ultimately, Banyan not only simplifies enterprise access management but also ensures a high level of security and operational efficiency, making it an essential tool for modern businesses.

Adopting a least-privileged access model significantly bolsters security for all users, irrespective of their geographical position. Transient authentication provides targeted, restricted access to vital infrastructure components. Zentry Trusted Access delivers a streamlined, clientless, browser-based zero-trust application access solution specifically designed for small to medium-sized businesses. Organizations reap the rewards of enhanced security practices, improved compliance, a reduced attack surface, and greater visibility into user and application activities. As a cloud-native service, Zentry Trusted Access is not only straightforward to deploy but also user-friendly. Employees, contractors, and third parties can securely access applications hosted in the cloud and data centers with just an HTML5 browser, eliminating the need for additional client software installations. By leveraging zero trust principles, including multi-factor authentication and single sign-on, only verified users are allowed entry to applications and resources. Furthermore, every session benefits from comprehensive end-to-end encryption via TLS, with access meticulously governed by specific policies. This method not only strengthens security protocols but also encourages a more adaptable work environment, ultimately supporting the evolving needs of modern organizations.

FerrumGate is a project centered around Open Source Zero Trust Network Access (ZTNA) that leverages cutting-edge identity and access management technologies to ensure secure connectivity to your network. It incorporates multi-factor authentication, continuous surveillance, and detailed access controls to enhance security. This system is suitable for a variety of applications, including secure remote access, cloud security, and management of privileged access. Additionally, it supports identity and access management, endpoint security measures, and facilitates connectivity for Internet of Things (IoT) devices. With its comprehensive features, FerrumGate aims to provide a robust solution for modern cybersecurity challenges.

MicroZAccess serves as a desktop client for Smart Zero Trust Network Access (ZTNA), leveraging reliable, high-speed, and encrypted tunnels to ensure secure user authentication and device connectivity to the cloud. Key features include a peer-to-peer overlay model that optimizes performance and privacy, as well as a Host/Workload Agent and Gateway method that allows for flexible deployment options. The solution also enhances device identity and integrates Device Trust Access employing multi-factor authentication (MFA) for added security. With a platform approach that simplifies comprehensive security, it seamlessly supports Secure Access Service Edge (SASE) and Software-Defined Wide Area Network (SD-WAN) implementations. Compliance checks are conducted on stateful devices both prior to and during connection, ensuring adherence to security protocols. Additionally, the platform enables granular policy application, allowing for tailored security measures according to specific organizational needs. This holistic approach to security not only safeguards data but also enhances user experience across various applications.

The Teleport Infrastructure Identity Platform represents a significant upgrade in the management of identity, access, and policies for infrastructure, catering to both human and non-human identities. This platform enhances the speed and reliability of essential infrastructure, making it more resilient to human errors and potential breaches. Focused on infrastructure-specific applications, Teleport employs trusted computing principles alongside a unified cryptographic identity system that encompasses humans, machines, and workloads. This capability allows for the identification of endpoints, infrastructure components, and AI agents alike. Our comprehensive identity solution seamlessly integrates identity governance, zero trust networking, and access management into one cohesive platform, thereby reducing operational complexities and eliminating silos. Furthermore, this integration fosters a more secure and efficient environment for managing diverse identities across various systems.

The iboss Zero Trust Secure Access Service Edge (SASE) transforms the way modern enterprises approach network security by facilitating secure and swift direct-to-cloud connections. Central to iboss Zero Trust SASE is the implementation of stringent access protocols that guarantee only verified and permitted users and devices gain access to network resources, irrespective of their physical location. This is accomplished through a robust array of security services founded on the principle of "never trust, always verify," which encompasses advanced threat protection, malware defense, data loss prevention (DLP), CASB, RBI, ZTNA, and real-time examination of encrypted traffic. Designed with a cloud-native foundation, iboss Zero Trust SASE offers unmatched visibility into user activities and sensitive data exchanges, streamlining the journey toward a secure digital transformation. This modern solution empowers organizations to implement a more adaptable, perimeter-less security approach, accommodating the fluid work environments characteristic of today's workforce. Ultimately, with iboss Zero Trust SASE, businesses can confidently leverage cloud technologies and mobile work arrangements while maintaining robust security measures, thereby achieving an essential equilibrium between operational efficiency and protective strategies in the rapidly changing cyber landscape. Furthermore, this innovative architecture not only addresses current security challenges but also prepares organizations for future threats, ensuring resilience in an increasingly digital world.

The RevBits Zero Trust Network (ZTN) enhances the security of your internal resources by shifting the network perimeter directly to the endpoint. By relocating the network boundary to the user, RevBits ZTN effectively safeguards and segregates internal network assets without the complications associated with traditional network segmentation. This innovative approach prioritizes the protection of various network resources, including applications, services, accounts, and assets. It operates on a trust-no-one principle, ensuring that all users are treated as potential threats, whether they are within the network or external to it. As a result, adopting a zero-trust architecture has become more accessible than ever, paving the way for a more secure digital environment.