Page 8 | Best IT Security Software for Linux of 2025

Guardian Digital

Guardian Digital secures against email threats like phishing, zero-day exploits and ransomware attacks that define the modern threat landscape email users face every day. We believe email security is business security, as greater than 90% of all cyber attacks originate from an email. The most effective email protection is delivered through a purpose-driven solution designed to close critical security gaps in Microsoft 365 and Workspace, coupled with the expert setup, ongoing remote system management and accessible support required to improve IT security. With real-time cybersecurity business insights, we help you understand what your risk profile is today, and protect you from the dangers that all businesses face. EnGarde Cloud Email Security - Key Features: • Phishing, spoofing & impersonation protection • Link & file analysis • Zero-day attack protection • Malware & Ransomware protection • SPF/DKIM/DMARC checking • Encryption • Comprehensive management & support service

Starting Price: Monthly & Annual Subscriptions

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Edge Delta

Edge Delta is a new way to do observability that helps developers and operations teams monitor datasets and create telemetry pipelines. We process your log data as it's created and give you the freedom to route it anywhere. Our primary differentiator is our distributed architecture. We are the only observability provider that pushes data processing upstream to the infrastructure level, enabling users to process their logs and metrics as soon as they’re created at the source. We combine our distributed approach with a column-oriented backend to help users store and analyze massive data volumes without impacting performance or cost. By using Edge Delta, customers can reduce observability costs without sacrificing visibility. Additionally, they can surface insights and trigger alerts before data leaves their environment.

Starting Price: $0.20 per GB

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IRI DarkShield

IRI, The CoSort Company

IRI DarkShield is a powerful data masking tool that can (simultaneously) find and anonymize Personally Identifiable Information (PII) "hidden" in semi-structured and unstructured files and database columns / collections. DarkShield jobs are configured, logged, and run from IRI Workbench or a restful RPC (web services) API to encrypt, redact, blur, etc., the PII it finds in: * NoSQL & RDBs * PDFs * Parquet * JSON, XML & CSV * Excel & Word * BMP, DICOM, GIF, JPG & TIFF DarkShield is one of 3 data masking products in the IRI Data Protector Suite, and comes with IRI Voracity data management platform subscriptions. DarkShield bridges the gap between structured and unstructured data masking, allowing users to secure data in a consistent manner across disparate silos and formats by using the same masking functions as FieldShield and CellShield EE. DarkShield also handles data in RDBs and flat-files, too, but there are more capabilities that FieldShield offers for those sources.

Starting Price: $5000

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IRI CoSort

IRI, The CoSort Company

What is CoSort? IRI CoSort® is a fast, affordable, and easy-to-use sort/merge/report utility, and a full-featured data transformation and preparation package. The world's first sort product off the mainframe, CoSort continues to deliver maximum price-performance and functional versatility for the manipulation and blending of big data sources. CoSort also powers the IRI Voracity data management platform and many third-party tools. What does CoSort do? CoSort runs multi-threaded sort/merge jobs AND many other high-volume (big data) manipulations separately, or in combination. It can also cleanse, mask, convert, and report at the same time. Self-documenting 4GL scripts supported in Eclipse™ help you speed or leave legacy: sort, ETL and BI tools; COBOL and SQL programs, plus Hadoop, Perl, Python, and other batch jobs. Use CoSort to sort, join, aggregate, and load 2-20X faster than data wrangling and BI tools, 10x faster than SQL transforms, and 6x faster than most ETL tools.

Starting Price: $4,000 perpetual use

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Contrast Security

Modern software development must match the speed of the business. But the modern AppSec tool soup lacks integration and creates complexity that slows software development life cycles. Contrast simplifies the complexity that impedes today’s development teams. Legacy AppSec employs a one-size-fits-all vulnerability detection and remediation approach that is inefficient and costly. Contrast automatically applies the best analysis and remediation technique, dramatically improving efficiencies and efficacy. Separate AppSec tools create silos that obfuscate the gathering of actionable intelligence across the application attack surface. Contrast delivers centralized observability that is critical to managing risks and capitalizing on operational efﬁciencies, both for security and development teams. Contrast Scan is pipeline native and delivers the speed, accuracy, and integration demanded by modern software development.

Starting Price: $0

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DesktopReady

Anunta DesktopReady

The first complete Virtual Desktop solution that provides both automation and services to deliver secure modern workspaces. Office is how you work instead of where you go. All data and applications are in the public cloud. Devices are owned by employees not IT, and computing is consumed on-demand. Desktop as a Service (DaaS) is a virtual desktop deployment model in which the virtual desktop infrastructure (VDI) technology is hosted on the cloud. It includes provisioning, patching and maintenance of the management plane and resources to host workloads. In DaaS, the storage, network resources, and other support infrastructure are hosted in the cloud. Desktop as a Service (DaaS) provides organizations access to enterprise applications and workloads hosted on public or private cloud. The workforce can access their desktops using a web-based browser securely on the device of their choice.

Starting Price: $75 per month

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Accelario

Take the load off of DevOps and eliminate privacy concerns by giving your teams full data autonomy and independence via an easy-to-use self-service portal. Simplify access, eliminate data roadblocks and speed up provisioning for dev, testing, data analysts and more. Accelario Continuous DataOps Platform is a one-stop-shop for handling all of your data needs. Eliminate DevOps bottlenecks and give your teams the high-quality, privacy-compliant data they need. The platform’s four distinct modules are available as stand-alone solutions or as a holistic, comprehensive DataOps management platform. Existing data provisioning solutions can’t keep up with agile demands for continuous, independent access to fresh, privacy-compliant data in autonomous environments. Teams can meet agile demands for fast, frequent deliveries with a comprehensive, one-stop-shop for self-provisioning privacy-compliant high-quality data in their very own environments.

Starting Price: $0 Free Forever Up to 10GB

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Sn1per Professional

Sn1perSecurity

Sn1per Professional is an all-in-one offensive security platform that provides a comprehensive view of your internal and external attack surface and offers an asset risk scoring system to prioritize, reduce, and manage risk. With Sn1per Professional, you can discover the attack surface and continuously monitor it for changes. It integrates with the leading open source and commercial security testing tools for a unified view of your data. + Discover hidden assets and vulnerabilities in your environment. + Integrate with the leading commercial and open source security scanners to check for the latest CVEs and vulnerabilities in your environment. + Save time by automating the execution of open source and commercial security tools to discover vulnerabilities across your entire attack surface. + Discover and prioritize risks in your organization. Get an attacker's view of your organization today with Sn1per Professional!

Starting Price: $984/user

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Big Network

Big Network securely and simply connects networks and services between people, places, clouds and devices anywhere. We combine easy button simplicity for mesh-vpn, sdwan and cloud services. Big Network also provides broadband services, a cloud marketplace and a partner ecosystem. 83% of businesses will continue operating with hybrid workforces according to Accenture. Big Network provides the tools to securely and simply connect networks and services between users, teams, offices, homes, clouds and devices anywhere. Private networking is hard, complex and expensive. There is a multitude of legacy technologies to choose from, each driven by an ecosystem of hardware and software vendors and their objectives.

Starting Price: $100 per month

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Telepresence

Ambassador Labs

Telepresence streamlines your local development process, enabling immediate feedback. You can launch your local environment on your laptop, equipped with your preferred tools, while Telepresence seamlessly connects them to the microservices and test databases they rely on. It simplifies and expedites collaborative development, debugging, and testing within Kubernetes environments by establishing a seamless connection between your local machine and shared remote Kubernetes clusters. Why Telepresence: Faster feedback loops: Spend less time building, containerizing, and deploying code. Get immediate feedback on code changes by running your service in the cloud from your local machine. Shift testing left: Create a remote-to-local debugging experience. Catch bugs pre-production without the configuration headache of remote debugging. Deliver better, faster user experience: Get new features and applications into the hands of users faster and more frequently.

Starting Price: Free

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signer.digital

Chartered Information Systems

signer.digital is the range of solutions which offer its users innovative ways to sign the documents and files and eInvoices, through it rage of procuts like, Bridge Application, REST APIs, Web Server and Web Libraries, DLLs and Free signer.digital Browser Extension. The signer.digital Bridge application can be setup in minutes for Digitally Signing with any of the existing ERP or application without writing a line of code, while the web server and libraries can be configured with any application, signer.ditial supports cross-platform applications through REST APIs. With signer.digital Browser Extension we offer seamless PKI operations through all the modern Browsers like Chrome, Edge and Firefox on all 3 OS platforms. Users can perform PKI Operations like Signing, Encryption, Verification, Authentication, Download of Digital Certificate Etc.

Starting Price: $1

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Onboardbase

Onboardbase is the a secret management infrastructure platform that provides single source of shared truth for app secrets and usage. It helps dev teams securely share and work with environment-specific configs at every development stage, synced across infrastructure without compromising security - this means development teams can focus on building great apps rather than managing secrets and data. Secrets are dynamically kept up to date across your environments and infrastructure, with 50+ integrations and growing. Dev teams can monitor and audit how long, where and when your secrets are used and revoke usage anywhere with a click. Powerful always-on codebase scanning features prevent developers from accidentally leaking secrets to production, maintaining a robust security model.

Starting Price: Free

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OXARI

Infonet Projekt SA

OXARI is a professional ITSM class ServiceDesk system that is ITIL-compliant and enriched with a toolset needed by IT teams. IMPLEMENTATION BENEFITS: - OXARI is a universal platform that enables implementation of a professional ITSM class system in accordance with the ITIL standard. The system includes tools to facilitate IT teams’ work, and a dedicated set of features designed to manage advanced business processes. - The modular design of the system, combined with a modern user interface, allows you to model any Asset Management, CMDB, ServiceDesk, Workflow, and MDM work logic. - The system can be accessed using any web browser. It also allows you to design all the user interface components by yourself. MULTIPLE CONFIGURATIONS Rule-based management is the main component of the system that ensures configuration flexibility. OXARI allows you to create any number of patterns consisting of specific rules and actions.

Starting Price: $7/month/user

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Neurodactyl

Neurodactyl is a technology startup, specializing in сontactless fingerprint recognition algorithms. Our main advantages: - Highly accurate neural network algorithms, top-tier results on NIST PFT III - The technology works with scans and photo images - All types of fingerprints are supported - Very fast matching - from 100M matches pers 1 s on 1 CPU. Our products: - Server fingerprint recognition SDK for verification and identification - Mobile SDK for fingerprint acquisition on mobile devices - Server platform for verification and identification

Starting Price: USD 0.01 per verification

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OPNsense

Simple packet filters are becoming a thing of the past. Even the open-source domain is moving towards Next-Generation Firewalls. And OPNsense is a top player when it comes to intrusion detection, application control, web filtering, and anti-virus. No network is too insignificant to be spared by an attacker. Even home networks, washing machines, and smartwatches are threatened and require a secure environment. Firewalls are a component of the security concept. They protect against known and new threats to computers and networks. A firewall offers the highest level of protection if its functions are known, its operation is simple, and it is ideally positioned in the surrounding infrastructure. OPNsense accepts the challenge and meets these criteria in different ways. This book is the ideal companion for understanding, installing and setting up an OPNsense firewall.

Starting Price: Free

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Phishing Club

Phishing Club - Professional Self-Hosted Phishing Simulation Platform Phishing Club is a self-hosted phishing simulation platform designed for red teams, privacy aware companies, and security service providers. At its core, it's a single binary deployment that gives organizations complete control over their phishing infrastructure and data. What sets Phishing Club apart is its focus on self-hosting, ensuring organizations maintain complete data sovereignty while conducting security awareness training without artificial limits on campaigns, recipients, or domains. Open source and free

Starting Price: 0

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tenfold

tenfold is a no-code solution for Identity Governance & Administration (IGA), ensuring that the right people have access to the right resources at the right time. Thanks to its off-the-shelf plugins and streamlined setup, tenfold is fully operational in weeks - helping you avoid long & costly setup phases. Go from access risks to full control over IT privileges with tenfold's comprehensive IGA toolset: - User Lifecycle Management - Role-based Access - End User Self-Service - Approval Workflows - Data Access Governance - User Access Reviews - Separation of Duties

Starting Price: $.09/managed identity/month

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SafeLine WAF

Chaitin Tech

SafeLine WAF is a self-hosted, semantic-based Web Application Firewall developed by the team at Chaitin Technology. It focuses on protecting web applications from a wide range of threats, especially zero-day and application-layer (Layer 7) attacks, with high precision and minimal false positives. It is open source, easy to deploy, and designed to be flexible enough for both enterprise and personal use.

Starting Price: $0/month

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Devolutions Workspace

Devolutions

Workplace passwords are everywhere—apps, websites, servers. Devolutions Workspace brings them together in one interface that works across Windows, macOS, Linux, iOS, Android, and browsers. Users can autofill credentials, manage entries based on role-based access control (RBAC), and respond to time-sensitive access requests—without ever seeing the raw passwords. Workspace includes multi-factor authentication (MFA) through Devolutions Authenticator, secure in-app messaging, and offline mode. Admins can enforce strong policies, while end-users enjoy a frictionless login experience. The Workforce Password Management package is the backbone. It connects Workspace to centralized credential storage using either cloud-based Devolutions Hub or self-hosted Devolutions Server, depending on your infrastructure needs. This combination gives growing teams the structure they need to eliminate password chaos and strengthen access governance—without the complexity or cost of legacy solutions.

Starting Price: $3/month/user

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BalanceNG

Inlab Networks

BalanceNG is a reliable and modern multithreading software load balancer developed by Inlab Networks. Available for Linux and also macOS, BalanceNG easily integrates into data center networks and offers top quality packet processing performance, making this solution the ideal choice for hosting companies, network operators, and telco product designers. BalanceNG by Inlab Networks comes with a highly specialized IP stack for IPv6 and IPv4 and an independent active/passive cluster environment that is based on VRRP and the "bngsync" session table synchronization protocol. Operating BalanceNG with two nodes implements high availability on top of the Direct Server Return (DSR) topology. Direct Server Return (DSR) ist the most popular BalanceNG topology. It’s ultra-fast at wire speed (verified up to 10Gbit) and easy to set up. You are expecting tens of millions of concurrent sessions? No problem.

Starting Price: $350 one-time payment

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Asigra

Asigra helps IT teams increase their data recovery confidence through our unsurpassed reliability, security, manageability, and affordability in data protection software. Asigra's Enterprise Backup and Disaster Recovery (BDR) software platform was designed for Managed Service Providers (MSPs) to host and operate their own Backup as a Service solution. The easy to manage platform offers users the ability to white-label it to match your brand, while its breakthrough Hybrid Cloud Backup architecture combines a Cloud optimized scale-out architecture, a Cloud backup and recovery software platform, and a Cloud API and management system to help IT Teams seamlessly and efficiently manage, scale and deliver data protection services.

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Vector by Datadog

Datadog

Collect, transform, and route all your logs and metrics with one simple tool. Built in Rust, Vector is blistering fast, memory efficient, and designed to handle the most demanding workloads. Vector strives to be the only tool you need to get observability data from A to B, deploying as a daemon, sidecar, or aggregator. Vector supports logs and metrics, making it easy to collect and process all your observability data. Vector doesn’t favor any specific vendor platforms and fosters a fair, open ecosystem with your best interests in mind. Lock-in free and future proof. Vector’s highly configurable transforms give you the full power of programmable runtimes. Handle complex use cases without limitation. Guarantees matter, and Vector is clear on which guarantees it provides, helping you make the appropriate trade-offs for your use case.

Starting Price: Free

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Edgenexus Load Balancer (ADC/WAF/GSLB)

Edgenexus

Choose us because we offer the easiest to use technology without sacrificing features or performance. We back this up with outstanding support and care, delivered under a fair and cost effective pricing model Our technology is used by the smallest startups with big ideas and small budgets all the way to global enterprises and anything in between. We love them all the same! Easy to use Load balancing, WAF, GSLB and SSO/Pre-Authentication. It is also the Only true ADP Application Delivery Platform where the functionality and lifespan can be enhanced using the app store or applications that you develop in house.

Starting Price: $50

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SureMDM

42Gears Mobility Systems

Secure, Monitor, and Manage company or employee-owned devices. Avoid security risks and solve maintenance challenges during all phases of device lifecycle. SureMDM by 42Gears is an intuitive and powerful MDM solution and MDM app for Android, iOS/iPadOS, Windows, Linux, macOS, Wear OS, VR, and IoT platforms. You can secure, monitor, and manage company-owned devices for dedicated-use as well as employee-owned devices used to access company data (BYOD). SureMDM incorporates all aspects of enterprise mobility through unified endpoint management, including Mobile Application Management, Mobile Device Management, and Mobile Content Management. SureMDM licenses also include access to SureLock for kiosk lockdown, SureFox for a secure lockdown browser, and SureVideo for a secure digital signage solution.

Starting Price: $3.49 per month

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Singular

Singular empowers marketers to futureproof their growth with next-gen attribution and analytics. We provide a holistic solution that combines mobile attribution with industry-leading cost aggregation, flexible ROI analytics, and automatic loading directly into your BI tools. With Singular you are able to - Measure and report on all the channels you work with - Analyze ROI by combining attribution with leading cost aggregation - Track and analyze across the entire user lifecycle - Block more fraud with best-in-class fraud prevention - Monitor a single managed pipeline with a plug-and-play solution to extract, transform and load analysis-ready marketing data into your chosen data warehouse Top marketers from LinkedIn, Rovio, Microsoft, Lyft, Twitter, EA, and more, rely on Singular for a complete view of their marketing performance.

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Nagios Network Analzyer

Nagios Enterprises

Network Analyzer provides an in-depth look at all network traffic sources and potential security threats allowing system admins to quickly gather high-level information regarding the health of the network as well as highly granular data for complete and thorough network analysis. Network Analyzer provides a central view of your network traffic and bandwidth data as well as potential network compromises. The powerful home dashboard provides an at-a-glance view of critical netflow or sflow data sources, server system metrics, and abnormal network behavior for quick assessment of network health. Users can easily drill down to see specific information on individual IPs, source port, destination port, or any combination thereof. Network Analyzer’s advanced alerting and reporting capabilities provide IT staff with superior awareness of their network. Highly granular, down-to-the-packet data can be accessed and archived for further tracking and analysis.

Starting Price: $1995.00

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WebLOAD

RadView Software

RadView WebLOAD is a leading enterprise AI-based performance and load testing solution for testing web, mobile, and packaged applications. It supports over 150 protocols and technologies, including all common front-end frameworks, APIs, message queues, and databases, enabling load testing across any enterprise technology stack. RadView WebLOAD.AI, is available as SaaS and can also be self-hosted on-premise or in the cloud. It is highly scalable and can simulate hundreds of thousands of concurrent users from different locations and cloud platforms. With its smart and easy generation of reliable tests and its powerful AI-based analytics capabilities, RadView WebLOAD makes performance teams highly successful in detecting and quickly resolving performance issues even for the most complex environments. This makes RadView WebLOAD the solution of choice for many performance experts. RadView WebLOAD has built-in integration into most of the popular Testing, CI/CD and APM tools.

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Data Rover

Data Rover is an Advanced User Data and Security Management for any Data-Driven Organisation. A single solution for Infrastructure and Security managers that allows data users to explore, manage, process, and protect their data effectively and efficiently, by simultaneously addressing the two primary needs related to the use of data: Cyber Security and Data Management. Data Rover plays a key role in business asset protection and corporate data management policy definition. Data Analytics Check for security flaws and eliminate issues. Simplify the management of permissions. File Auditor It gives you the proof that something was done. Right or Wrong it's not important - JUST the FACTS. Dark Data Makes work faster and safer by optimising the storage resources usage and reducing costs. Involve the users in data management so they can contribute in keeping the storage systems clean and efficient. Advanced Data Exchange Share business data in/out of the company SAFELY.

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Saint Security Suite

Carson & SAINT

This single, fully integrated solution conducts active, passive and agent-based assessments while its extensive flexibility evaluates risk according to each business. SAINT’s impressive, flexible and scalable scanning capabilities set it apart from many others in this space. SAINT has partnered with AWS, allowing its customers to take advantage of AWS’s efficient scanning. Should subscribers prefer, SAINT also offers a Windows scanning agent. Security teams can schedule scans easily, configure them with considerable occurrence flexibility and fine-tune them with advanced options. As a vulnerability management solution, SAINT Security Suite’s security research and development efforts focus on investigation, triage, prioritization, and coverage of vulnerabilities of the highest levels of severity and importance. Not willing to settle for just blanket coverage and raw data, our analysts focus on developing tools for what matters to our customers.

Starting Price: $1500.00/year/user

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Centrifuge Analytics

Culmen Internal LLC

Centrifuge Analytics™ is a big data discovery technology that provides the power and flexibility to connect, visualize and collaborate without complex data integration, costly services or a data science degree. It combines sophisticated link-analysis, interactive visualizations and discovery features to dramatically simplify data pattern and connection recognition. - First and foremost, a fully integrated solution that empowers analysts to work with no IT support - Sophisticated link-analysis features such as pattern Identification, intelligent bundling and various unique visual interactive features - 100% Browser footprint ensures no client-side data retention that simplifies security and client administration Patent-pending server-side rendering engine enables highly scalable network graphs Agile data integration – No need to stage, warehouse or apply a fixed ontology Model-based analytics – Setup once and reuse – build upon the experience of more seasoned analysts

Starting Price: Call

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Best IT Security Software for Linux - Page 8

Compare the Top IT Security Software for Linux as of October 2025 - Page 8

Guardian Digital

Edge Delta

IRI DarkShield

IRI CoSort

Contrast Security

DesktopReady

Accelario

Sn1per Professional

Big Network

Telepresence

signer.digital

Onboardbase

OXARI

Neurodactyl

OPNsense

Phishing Club

tenfold

SafeLine WAF

Devolutions Workspace

BalanceNG

Asigra

Vector by Datadog

Edgenexus Load Balancer (ADC/WAF/GSLB)

SureMDM

Singular

Nagios Network Analzyer

WebLOAD

Data Rover

Saint Security Suite

Centrifuge Analytics

Best IT Security Software for Linux - Page 8

Compare the Top IT Security Software for Linux as of October 2025 - Page 8

Guardian Digital

Edge Delta

IRI DarkShield

IRI CoSort

Contrast Security

DesktopReady

Accelario

Sn1per Professional

Big Network

Telepresence

signer.digital

Onboardbase

OXARI

Neurodactyl

OPNsense

Phishing Club

tenfold

SafeLine WAF

Devolutions Workspace

BalanceNG

Asigra

Vector by Datadog

Edgenexus Load Balancer (ADC/WAF/GSLB)

SureMDM

Singular

Nagios Network Analzyer

WebLOAD

Data Rover

Saint Security Suite

Centrifuge Analytics

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