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Head-to-head · Computer Security

Microsoft Defender for Business vs Trellix Endpoint Security

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Microsoft Defender for Business #6 in Computer Security 8.7/10 30-day trial Free trial✓ 1 of 4 features Visit Microsoft
Trellix Endpoint Security #8 in Computer Security 8.4/10 Pricing on request ✓ 0 of 4 features Visit Trellix

Microsoft Defender for Business leads on 0 checks, Trellix Endpoint Security on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMicrosoft Defender for Business · 8.7/10
  • Free trialonly Microsoft Defender for Business
  • Most featuresMicrosoft Defender for Business · 1 of 4

Microsoft Defender for Business scores higher on our rubric for computer security: 8.7 against 8.4 out of 10; our editors rank them #6 and #8.

Microsoft Defender for Business is the better fit for small businesses already using Microsoft tools. Trellix Endpoint Security is the better fit for mid-size and large teams managing endpoints centrally.

  • Microsoft Defender for Business fits best

    Small businesses already using Microsoft tools

  • Trellix Endpoint Security fits best

    Mid-size and large teams managing endpoints centrally

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Microsoft Defender for Business 8.7/10 Visit ↗ Trellix Endpoint Security 8.4/10 Visit ↗
At a glance
Editor score 8.7 8.4
Ranking #6 in Computer Security #8 in Computer Security
Best for Small businesses already using Microsoft tools Mid-size and large teams managing endpoints centrally
Pricing model Paid Paid
Starting price $3/user/mo Pricing on request
Free plan — Not checked yet
Free trial 30 days —
Deployment Cloud, Mobile Cloud, Self-hosted
Platforms Web, Windows, macOS, iOS, Android Windows, macOS, Linux
Support Docs Tickets
Integrations 4 integrations 4 integrations
Built for Small business, Mid-market Mid-market, Enterprise
Features Microsoft Defender for Business 1/4 · Trellix Endpoint Security 0/4
Real-time protection Not checked yet Not checked yet
Ransomware protection ✓ (best) Not checked yet
Vulnerability scanning Not checked yet Not checked yet
Central management Not checked yet Not checked yet
Specs
Deployment Not checked yet Not checked yet
Platform support Not checked yet Not checked yet
Our review
Pros
  • Automatic disruption for in-progress ransomware attacks
  • Covers Windows, macOS, iOS and Android devices
  • Includes EDR, investigation, remediation and vulnerability management
  • Combines behavioral detection, machine-learning prevention, and exploit blocking
  • Centralizes policy management through ePolicy Orchestrator
  • Covers clients, servers, and NAS with device and application controls
Cons
  • Annual billing applies to the $3-per-user monthly price
  • The 30-day trial requires a payment card
  • Support channels are limited to documentation
  • Pricing requires contacting sales
  • Mobile protection is a separate Trellix product
  • Ticket support may not suit teams needing other support channels
Our verdict

Microsoft Defender for Business is an endpoint security service for small and medium-sized businesses with up to 300 users. It combines next-generation antivirus, ransomware protection, endpoint detection and response, vulnerability…

Read the review →

Trellix Endpoint Security is an endpoint protection platform for organizations managing clients, servers, and network-attached storage across varied environments. Its feature set is aimed at mid-size and large teams that need centralized…

Read the review →
  1. Microsoft Defender for BusinessComputer Security 8.730-day trial
  2. Trellix Endpoint SecurityComputer Security 8.4Pricing on request

Strengths and trade-offs

  • Microsoft Defender for Business — where it wins

    • Automatic disruption for in-progress ransomware attacks
    • Covers Windows, macOS, iOS and Android devices
    • Includes EDR, investigation, remediation and vulnerability management

    Where it doesn't

    • Annual billing applies to the $3-per-user monthly price
    • The 30-day trial requires a payment card
    • Support channels are limited to documentation
  • Trellix Endpoint Security — where it wins

    • Combines behavioral detection, machine-learning prevention, and exploit blocking
    • Centralizes policy management through ePolicy Orchestrator
    • Covers clients, servers, and NAS with device and application controls

    Where it doesn't

    • Pricing requires contacting sales
    • Mobile protection is a separate Trellix product
    • Ticket support may not suit teams needing other support channels
  • Microsoft Defender for Business8.7/10 · 30-day trial

    A Microsoft-integrated endpoint security suite at $3 per user monthly, billed annually.

    Visit MicrosoftFull verdict →
  • Trellix Endpoint Security8.4/10 · Pricing on request

    Centralized endpoint protection for teams managing varied devices and environments.

    Visit TrellixFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update