Best IT Security Software for Windows

Compare the Top IT Security Software for Windows as of November 2025

What is IT Security Software for Windows?

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 Windows currently available using the table below. This list is updated regularly.

  • 1
    Proton Mail

    Proton Mail

    Proton AG

    Proton Mail is the simplest way to protect your communications with built-in end-to-end encryption. Prevent data breaches, stay compliant with regulations like GDPR and HIPAA, and earn client trust. Protected by Swiss privacy laws and trusted by over 50,000 businesses, Proton Mail keeps your business data confidential and under your control. With Proton Mail and Calendar, your team can securely manage their inbox and schedule, while your organization maintains a professional presence with support for custom email domains and personalized branding. And with the Easy Switch tool, migrating from Google or Microsoft is seamless, no IT expertise required.
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    Starting Price: $6.99/user/month
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  • 2
    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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  • 3
    Cloudbrink

    Cloudbrink

    Cloudbrink

    If you’ve ever dealt with slow VPNs, or clunky ZTNA agents that degrade app performance, you’re not alone. Many IT teams are stuck balancing security with usability—and often end up sacrificing both. Here is a different approach. The high-performance ZTNA service that is part of a personal SASE solution from Cloudbrink can upgrade or replace traditional VPNs while fixing the performance and complexity that come from other vendors in the ZTNA and SASE space. Built as a software-only service, Cloudbrink delivers sub-20ms latency and 1Gbps+ speeds per user using dynamically deployed FAST edges and a proprietary protocol that recovers packet loss before it impacts the app. Security isn’t bolted on—it’s built in. With mutual TLS 1.3, short-lived certs, and no exposed IPs, Cloudbrink provides real zero trust without making users suffer through poor connections or overloaded POPs. If you’ve been burned by “next-gen” solutions that still feel like 2008, it might be time for something new.
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  • 4
    LumenVox

    LumenVox

    LumenVox

    Transforming customer engagement with AI-driven speech recognition and voice authentication technology. We’ve spent the last 20 years empowering our partners’ success through collaboration. Our curiosity keeps us innovating for the next 20. Our flexible speech-enabling technology enables you to build a solution that fulfills all your customers’ demands, affordably and reliably. We do one thing, and we do it well. And that's speech-enabling your applications. Finally, deliver great voice automation and interactions. Whether short and simple commands, or conversational questions, LumenVox ASR and TTS is accurate and affordable, helping you improve efficiencies on both sides of the phone line. You’ll never repeat yourself again. We provide you with the utmost flexibility from a capabilities, deployment and monetization perspective. If you can think it, you can build it with LumenVox. Shorten your development to deployment time with our easy, intuitive technology and toolsets.
  • 5
    Mailfence

    Mailfence

    Mailfence

    Mailfence is an encrypted email service that offers OpenPGP based end-to-end encryption and digital signatures. Mailfence comes with a plethora of features that boost collaboration without compromising security and convenience. Mailfence documents allow you to safely store and edit documents, you can also share docs with your team with the push of a button. Mailfence calendar will keep your tasks, meetings, and events all in one secure place. Mailfence contacts will store your contacts and it will give you the ability to create mailing lists to maximize efficiency. We designed Mailfence to be a fully interoperable suite, which means you can synchronize Mailfence with most services out there. Mailfence business offers fully customizable whitelabel versions of the Mailfence interface. To put the cherry on top, Mailfence donates 15% of revenues of PRO subscriptions to IFF and EDRI to bolster the fight for Online privacy.
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    Starting Price: $2.50/month/user
  • 6
    Aid4Mail

    Aid4Mail

    Fookes Software Ltd

    Aid4Mail is a fast, reliable, and highly accurate tool to collect, recover, search, and convert emails. It supports most mailbox file formats (e.g. PST, OST, OLM, mbox), IMAP accounts (e.g. Yahoo! Mail, AOL) and popular mail service providers (e.g. Microsoft 365, Exchange, Gmail). Aid4Mail can recover double-deleted messages and corrupted emails, and extract MIME data from certain types of unknown file formats through file carving. Aid4Mail provides a large array of tools to search and filter out unwanted emails during conversion. Save time by using native pre-acquisition filters to download a subset of your mail from Exchange, Office 365, Gmail and other webmail services. Use Aid4Mail’s integrated search engine to cull-down your email collection. Its search operators are very similar to Gmail and Office 365. Aid4Mail is used by Fortune 500 companies, government agencies and legal professionals around the world. It is made in Switzerland by perfectionists.
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    Starting Price: $59.95
  • 7
    Avast Business Hub
    The Business Hub is an integrated, cloud-based security platform for businesses and IT service providers to manage all Avast Business solutions deployed in their networks. It provides real-time visibility of threats, comprehensive reporting, and management capabilities, all from a single pane of glass. Formerly known as CloudCare, the Business Hub is an easy-to-use cloud security platform with a refreshing new UI.
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    Starting Price: $36.99
  • 8
    Spike

    Spike

    Spike

    Spike brings your entire workspace into your Inbox: email, chat, calendar, calls, team collaboration, tasks — to one powerful Inbox. Everything you need to get your work done is in a single feed, so you can finally give the app-switching a rest. Spike’s conversational email fuses traditional email with instant messaging — eliminating cluttered email threads. With real-time conversations and live collaboration, have better interactions and a more human communication experience. Spike is available on iOS, Android, Mac, Windows & Web.
    Starting Price: Free
  • 9
    Mattermost

    Mattermost

    Mattermost

    Mattermost is a flexible, open source messaging platform that enables secure team collaboration. Build intuitive workflows and collaborate across large teams without worrying about security or data privacy. Get up and running quickly with hundreds of existing integrations, or build out custom workflows that scale to tens of thousands of concurrent users. Many of the world’s leading privacy-conscious enterprises work better with Mattermost by connecting people, tools, and automation to increase collaboration. DevOps teams use Mattermost to power collaboration at every stage of the DevOps lifecycle. Mattermost unifies people, tools, data, and automations to help your team increase innovation and agility. Mattermost is an open source Slack alternative. It's written in Golang and React and runs as a single Linux binary with MySQL or PostgreSQL. Use the features you like (file sharing, real-time group chat and webhooks—to name a few) and access the source code.
    Starting Price: $3.25 per user per month
  • 10
    Delivery Trust

    Delivery Trust

    Identillect Technologies

    Senders maintain complete control - restrict recipients’ privileges to print, forward or download content, and retract at any time. Identillect evolves with regulatory changes, continuously researching so you don’t have to. Simple for both senders and receivers. No registration or subscription required for recipients. Leverage Identillect’s patented vCard technology to further streamline your secure communications directly from Outlook. Set the level of security desired, enforce enterprise policies across the entire network limiting recipient permissions. This add-in includes access to all Delivery Trust® – Web Only features and capabilities. The DELIVERY TRUST® O365 Add-in makes securing your communications and responses simple while on the go. The intuitive interface means no learning curve with non-invasive implementation company-wide. This add-in includes access to all DELIVERY TRUST® – Web Only features and capabilities.
    Starting Price: $5.95 per month
  • 11
    Routee

    Routee

    AMD Telecom

    Routee is an intelligent omnichannel communication platform (CPaaS) offering advanced Web and API automation for all industries worldwide. Powered by AMD Telecom’s robust infrastructure, Routee's services enable businesses to optimize their marketing & business processes. -SMS Marketing: tailor-made messages based on customers' individual preferences -Email Marketing: personalized newsletters & email campaigns based on an audience's behavioral data -Transactional Email: automated emails to customers on important data regarding their transactions -Marketing Automation: rich forms & customer data capture, automation of repetitive marketing tasks, and tracking of marketing campaigns -Two Factor Authentication: a second layer of security with fallback through SMS, Voice, Viber & Missed Call -Cloud IVR: multilingual capabilities, turning speech into text, & text to human-sounding speech -Push Notification: personalized web & mobile push notifications, based on segmentation and user
    Starting Price: $0.01 one-time fee
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    Tuta

    Tuta

    Tuta

    Tuta offers a highly secure, encrypted email, calendar, and contacts service designed to give users complete control over their data. With end-to-end encryption powered by quantum-safe cryptography, Tuta ensures that all your communications are private and safe from surveillance. The platform is easy to use, supports mobile apps for Android and iOS, and is ad-free, offering a seamless experience across multiple devices. Tuta is committed to using renewable energy to power its servers, ensuring privacy while contributing to a greener future.
    Starting Price: €1.20 per month
  • 13
    Xink

    Xink

    Xink

    Manage Microsoft 365 or Google Workspace email signatures in one place with Xink's powerful web portal - built on a decade of experience with email signature management. Get consistent, branded and up-to-date signatures for all employees across devices, departments, and geography. Create customized and targeted email signature marketing banners below the contact details to share updates, achievements, values, promote content and much more! All with clickable call-to-actions to help you drive traffic and interest. With role-based login, the marketing or communications department can easily manage it. After the initial setup (45 min), IT has no workload. Safely hosted at ISO 27001-certified data centers (Microsoft Azure). This ensures the best, most secure data storage available – under all laws and regulations, including GDPR.
    Starting Price: $1/user/month
  • 14
    Authkey

    Authkey

    Authkey.io

    Authkey is a multi-channel CPaaS platform providing SMS API, WhatsApp Business API, Voice API, Email API, and Google RCS. It helps businesses send notifications, promotional messages, transactional messages, OTPs, 2FA, and more. Designed for responsiveness and ease of use, Authkey allows you to start without adding any credit cards. Authkey offers a free sandbox account for building, testing, and deploying. It supports easy-to-integrate APIs for all channels and over 1,000 automation options via Zapier, Pabbly, Integrately, and other partners. You can easily push bulk campaigns through all channels. WhatsApp Chatbot for intelligent customer query responses. Join over 200 active businesses working with us and grow together.
    Starting Price: $0
  • 15
    CB Exchange Server Sync

    CB Exchange Server Sync

    Connecting Software

    CB Exchange Server Sync is the solution for secure synchronization and migration of data between Exchange Servers. It enables easy synchronization of multiple Outlook accounts hosted in Exchange Server or Office 365. Fully customizable to your business needs. It can be used as one-way or two-way synchronization of calendars, emails, tasks, contacts, and public folders. This solution supports seamless migration of your entire Exchange / Outlook model to Office 365, or other Exchange versions from Exchange 2010 SP1 and all newer ones. Great in combination with: • CB Super Secure Exchange Server, the solution to prevent hackers from using Exchange Server as entry point to a secure network. • Exchange/ Outlook Content Censor, access your Exchange account outside the company without exposing sensitive information. You can control what to restrict such as: attachments, address, signatures, names, documents and more.
    Starting Price: $4.99 per user/per month
  • 16
    Klaxon

    Klaxon

    Klaxon Technologies

    Keep your people safe, informed and productive Communicate effectively within your organization with our major incident, mass notification and planned maintenance solution. Keep your team safe with time-sensitive communication updates Manage major incidents, disasters, business continuity events, cyber incidents and other emergencies with instant notifications, preventing potentially damaging events from escalating. The best tool for efficient and flexible communication in your business Choose Klaxon to improve the way you communicate Multiple notification channels Using our self-service interface, recipients can choose how they receive major incident notifications — through email, SMS, Voice/Telephone, Smartphone App, Microsoft Teams, Skype for Business and more. Two-way communications. Customizable two-way communications across all devices allows recipients to let you know if they've been affected, mark as safe and more. Efficient incident management.
    Starting Price: $0.61 per user, per month
  • 17
    LINQ Services

    LINQ Services

    LINQ Services

    Keep the carrier, Lose the headache. At LINQ, we understand that managing mobile devices and telecom services can be complex, costly, and time-consuming. That’s why we’ve reimagined mobile device management (MDM) to prioritize what truly matters to businesses—simplicity, cost efficiency, and exceptional service. Choosing LINQ means opting for a partner that understands the importance of both technology and service. Our approach is not just about managing devices—it’s about enhancing your operational efficiencies, reducing costs, and improving employee satisfaction through superior mobile device management. Guaranteed Savings, Cost-Effective without Compromise We’re so confident in our ability to reduce your mobile management costs that we offer guaranteed savings as part of our service promise. By optimizing your mobile fleets and reducing unnecessary expenditures, we ensure that LINQ not only meets but exceeds the value offered by traditional cost-per-line metrics.
    Starting Price: LINQ Price
  • 18
    ManageEngine M365 Manager Plus
    M365 Manager Plus is an extensive Microsoft 365 tool used for reporting, managing, monitoring, auditing, and creating alerts for critical activities. With its user-friendly interface, you can easily manage Exchange Online, Azure Active Directory, Skype for Business, OneDrive for Business, Microsoft Teams, and other Microsoft 365 services all from one place. M365 Manager Plus provides exhaustive preconfigured reports on Microsoft 365 and helps you perform complex tasks including bulk user management, bulk mailbox management, secure delegation, and more. Monitor Microsoft 365 services around the clock, and receive instant email notifications about service outages. M365 Manager Plus eases compliance management with built-in compliance reports and offers advanced auditing and alerting features to keep your Microsoft 365 setup secure.
    Starting Price: $345 per year
  • 19
    MobileWare

    MobileWare

    MobileWare

    When it comes to IoT connectivity, you need stable, blazing-fast connections you can trust. MobileWare inspires forward-thinking customer connectivity with simple-to-deploy and easily managed mobile solutions. At MobileWare, we provide advanced end-to-end connectivity and IoT solutions for enterprises. We use industry-leading IoT connectivity technologies to support your business’ mobility, wireline, IoT, and security. Our unique MobileWare Single SIM™ simply and securely connects all endpoints between your customers around the world. When it comes to global IoT connectivity, you need a network that keeps your business connected in the wildest of weather or the most remote locations. And this is why MobileWare exists—to give your business a truly global IoT network connectivity that covers different parts of the earth. Bring your products and services to the market faster, using our secure, scalable mobile IoT connectivity.
  • 20
    IceWarp

    IceWarp

    IceWarp

    The only office rule is, there is no office. Business email, TeamChat for project teamwork, real-time office document collaboration and online meetings. All in our secure cloud and for half the usual cost. Chat in teams organized around projects, upload files, mention coworkers, comment on posted emails, pin important posts. Integration with email enables sharing received messages directly to TeamChat room for colleagues‘ attention. Skyrocket your office work effectivity with Desktop Client and Desktop Office documents on Windows as well as Linux devices. Get the complete Suite, or choose only the app you need.
    Starting Price: $312.00/year/user
  • 21
    ProOpti

    ProOpti

    ProOpti

    Enterprises can optimize their costs, usage and administrative processes, as well as ensure high-quality services, by using Pro as an in-house optimization solution. Pro offers individual enterprises control, awareness and a balance between their technology investments and business demands. Digitally documenting an enterprise’s utilization of IT services also lays the foundation for a smoother process at accounts payable, where costs are booked correctly the first time. Service providers can offer ProOpti’s solution as part of their software delivery to customers. Pro is instrumental for service providers wishing to support their customers in handling technology costs and usage as a centrally-purchased or managed solution, and it can function as a service provider’s own platform for transparent reporting and insights. Service integrators can also maximize their profits by using Pro to make sure that they don’t over-deliver on unused services.
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