Best Computer Security Software for Microsoft 365

Find and compare the best Computer Security software for Microsoft 365 in 2025

Use the comparison tool below to compare the top Computer Security software for Microsoft 365 on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    SpamTitan Reviews
    Top Pick

    SpamTitan

    TitanHQ

    $2.14/user/month
    801 Ratings
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    SpamTitan email security protects businesses, schools, smbs and MSPs from spam. SpamTitan email security protects against spam, phishing, day-zero attacks and viruses, malware, ransomware and other threats to email. It helps to control mail flow, clean it, protect against spam, and protect against unwanted email. We offer easy-to-use, yet powerful email security for businesses, smbs, and MSPs that is Office365-friendly. SpamTitan Email Security is available for a free, fully supported trial. SpamTitan – Premium functionality included * CEO Impersonation protection * Spearphishing Protection/ Phishing * Link analysis * Full Sanding * Zero Day Attacks protection * Mail Spooling * Spoofing protection * Ransomware and Malware Protection * SPF/DKIM/DMARC checking * Encryption * Fully multi-tenant environment * Ability to rebrand entire UI * Full REST API * Set up documents and support SpamTitan Email Security is the best solution in the G2 Crowd Email Security. Start your free trial today!
  • 2
    Keeper Security Reviews
    Top Pick

    Keeper Security

    Keeper Security

    $2.00 per user, per month
    1,542 Ratings
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    Password security is the foundation of cybersecurity. Keeper's powerful password security platform will protect your business from cyberthreats and data breaches related to passwords. Research shows that 81% of data breaches can be attributed to weak passwords. Password security platforms are an affordable and easy way for companies to address the root cause of most data breaches. Your business can significantly reduce the risk of data breaches by implementing Keeper. Keeper creates strong passwords for all websites and apps, then secures them on all devices. Each employee receives a private vault to store and manage their passwords, credentials and files, as well as private client data. Employees will save time and frustration by not having to remember, reset, reuse, or remember passwords. Industry compliance is achieved through strict and customizable role-based access controls. This includes 2FA, usage auditing, and event reporting.
  • 3
    PhishTitan Reviews
    Powerful Inline Phishing Protection for M365. Harness the power of AI and our LLM to defeat phishing. PhishTitan is next generation inline phishing protection and remediation, powered by TitanHQ, the global leaders in email cybersecurity. Our learning model and AI integrates directly with Microsoft 365, both catching and remediating sophisticated phishing and BEC attacks that Microsoft misses. It provides users with in-the-moment warning banners to help them decide whether an email is malicious or safe, continually enhancing the human firewall. Post delivery remediation (PDR) allows you to remove all of these phishing emails from your users inbox removing risk instantly. The removed email goes to the junk folder. Our curated and unique email threat intelligence data is unmatched in its simplicity, visibility, coverage and accuracy. Risk free deployment in 6 minutes. PhishTitan will filter your email to identify phishing threats and protect your users and business. That’s how you avoid that one wrong click that can lead to disaster – all it takes is 6 minutes!
  • 4
    OneLogin Reviews
    OneLogin, a trusted identity management (IAM), solution for modern enterprises, helps you secure company information and empower your employees. OneLogin is a great solution for companies that want to simplify business logins and strengthen enterprise security. OneLogin features include single sign-on (SS), user provisioning, unified directory, user provisioning and adaptive authentication. Compliance reporting is also available.
  • 5
    N‑able Passportal Reviews
    Top Pick
    N-able™, Passportal™, provides simple, yet secure password management and documentation management that is tailored to the needs of MSPs and ITSPs. The platform is cloud-based, offering channel partners automated password protection. It makes it easy to store, manage, and retrieve passwords and client information from any connected device. N-able™, Passportal™, also offers value-added services products such as Documentation Manager™, Site™, and Blink™. These products promote compliance with industry regulations, protect businesses against data breaches, cybersecurity threats and network vulnerabilities.
  • 6
    GlassWire Reviews

    GlassWire

    GlassWire

    $35.88/year/user
    Monitor the volume of data your PC is using for every single app, thanks to GlassWire's network monitoring graph. Keep track of the volume of data you received and sent in the past and who or what your PC is talking to. Detect spyware, malware, badly behaving apps, and bandwidth hogs, then block their connections with our powerful firewall. Monitor devices on your network and get alerted when new unknown devices join your WiFi. GlassWire warns you of network-related changes to your PC or unusual changes to your apps that could indicate malware.
  • 7
    Microsoft Defender for Individuals Reviews
    The Microsoft Defender app is now available for download as part of your Microsoft 365 subscription. It provides easy-to-use online security for you, your family and your devices. One centralized view allows you to monitor and manage your security status across all your devices and computers. Anti-phishing and antivirus protection can help protect your family and you from online threats. Receive real-time alerts that include recommended actions and information about how you can stay safe online. All your online security status can be viewed from one central location. All your data and device protections for your family are available in one place. You can easily add or remove devices. You and your family can rest easy knowing that malware protection is available. You get continuous protection with antivirus scans for your devices and apps. You can control what files and apps are scanned by identifying trusted ones. Receive real-time alerts about security changes that affect you and your family.
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