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    Microsoft Defender

    Microsoft Defender for Business is AI-powered endpoint protection against malware and ransomware for organizations with up to 300 users.

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    ToolTrim verdict3.2/ 5Average

    Entry cost is 3 USD per user per month, about 36 USD per user per year for the standalone plan.

    About

    In practice. What you can do with Microsoft Defender.

    Microsoft Defender for Business brings AI-powered endpoint detection and response to small and medium organizations: it blocks malware and ransomware, reduces the attack surface with firewall and network protection rules, and can automatically disrupt a human-operated ransomware attack in progress. Automated investigation and a simplified setup wizard let an admin without a dedicated security team get protection running.

    The standalone plan costs 3 USD per user per month and covers up to 300 users with 5 devices each; server protection and larger deployments need a separate add-on or an enterprise Defender plan. It is also bundled into Microsoft 365 Business Premium at 22 USD per user per month.

    Practical uses

    • Endpoint protectionAn IT admin enrolls company laptops and phones so Defender blocks malware and ransomware automatically.
    • Bundled securityA small business on Microsoft 365 Business Premium gets Defender for Business included with its productivity suite.

    Features & use cases

    Consulting workflow

    Pros and cons. What Microsoft Defender does well, and what to expect.

    Pros

    • Blocks malware and automatically disrupts human-operated ransomware attacks in progress.
    • Can be bundled into Microsoft 365 Business Premium for teams already on that suite.

    Cons

    • Capped at 300 users and 5 devices per user, so it does not scale to larger organizations.
    • Server protection is a separate paid add-on, not included in the base price.

    When it makes sense. Keep Microsoft Defender, or challenge it?

    Keep if

    • Keep it if you run a small or medium organization (up to 300 users) that needs endpoint protection without a dedicated security team.
    Microsoft Defender becomes worthwhile when
    • You use it at least once a week
    • The monthly cost ($3) is small next to the time it saves you

    Challenge if

    • Avoid it if you need to protect servers by default or have more than 300 users: both require extra add-ons or an enterprise plan.
    Microsoft Defender becomes too expensive when
    • You use it less than once a month
    • A simple free version or a tool already in your stack would do

    Pricing. What does Microsoft Defender cost ?

    Defender for Business (standalone)

    ToolTrim reference price

    $3/mo

    Billed annually · $3/mo billed monthly. Per user.

    • Annual subscription (auto-renews), up to 300 users, up to 5 devices per user, no minimum device requirement.

    Microsoft 365 Business Premium (bundle)

    $22/mo

    Billed annually · $22/mo billed monthly. Per user.

    • Includes Defender for Business plus the full Microsoft 365 productivity suite.

    Official pricingChecked on September 25, 2026

    Microsoft Defender's billing traps

    Before you pay

    The standalone plan is an annual subscription that auto-renews, and server protection is billed as a separate add-on.

    Alternatives. What could replace Microsoft Defender?

    Current

    Direct substitutes

    Our verdict. What to know about Microsoft Defender.

    Why this verdict

    Average

    Added value

    At 3 USD per user per month it adds AI-powered endpoint protection cheaply, but no comparative cost data against other EDR tools is available.

    Simplicity

    A simplified setup wizard is mentioned, but no concrete time-to-first-result is stated in the collected sources.

    Fit for purpose

    Blocks malware and automatically disrupts ransomware attacks in progress, matching the stated promise without a mentioned workaround.

    Performance

    Covers detection, response, attack surface reduction and vulnerability management, but is capped at 300 users with no comparison data to call it a category reference.

    Reversibility

    Neutral score: data export and portability are not covered by the collected sources.

    Microsoft Defender Summary

    Category
    productivity tool.
    Price from
    $3/mo (Defender for Business (standalone)).
    Best for
    Small business owners or admins who need endpoint protection against malware and ransomware without a dedicated security team.
    Avoid if
    Avoid it if you need to protect servers by default or have more than 300 users: both require extra add-ons or an enterprise plan.
    Alternatives
    Crowdstrike, Vanta.
    ToolTrim verdict
    Entry cost is 3 USD per user per month, about 36 USD per user per year for the standalone plan.

    Frequently asked questions.

    What to know before choosing Microsoft Defender.

    What is Microsoft Defender used for?

    Microsoft Defender for Business is AI-powered endpoint protection against malware and ransomware for organizations with up to 300 users.

    How much does Microsoft Defender cost?

    Microsoft Defender costs $3/month (Defender for Business (standalone) plan). Price verified on 2026-09-25.

    Is Microsoft Defender suitable for beginners?

    Small business owners or admins who need endpoint protection against malware and ransomware without a dedicated security team.

    Is Microsoft Defender worth the price?

    Entry cost is 3 USD per user per month, about 36 USD per user per year for the standalone plan.

    What are the best alternatives to Microsoft Defender?

    The main alternatives to Microsoft Defender are: Crowdstrike, Vanta. Free alternatives: Vanta.

    Microsoft DefenderFrom $3/mo
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