Head-to-head · Antivirus Software
Microsoft Defender for Business vs FortiClient
Microsoft Defender for Business leads on 0 checks, FortiClient on 0, and 4 are even. Who comes out ahead on the 4 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 · 9.4/10
- Free trialonly Microsoft Defender for Business
Microsoft Defender for Business scores higher on our rubric for antivirus software: 9.4 against 8.9 out of 10; our editors rank them #1 and #5.
Microsoft Defender for Business is the better fit for small businesses needing managed endpoint security. FortiClient is the better fit for enterprise teams using Fortinet infrastructure.
- Microsoft Defender for Business fits best
Small businesses needing managed endpoint security
- FortiClient fits best
Enterprise teams using Fortinet infrastructure
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Side by side
| Feature | Microsoft Defender for Business 9.4/10 Visit ↗ | FortiClient 8.9/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 8.9 |
| Ranking | #1 in Antivirus Software | #5 in Antivirus Software |
| Best for | Small businesses needing managed endpoint security | Enterprise teams using Fortinet infrastructure |
| Pricing model | Paid | Paid |
| Starting price | $3/user/mo | Pricing on request |
| Free plan | — | — |
| Free trial | 30 days | — |
| Deployment | Cloud, Mobile | Cloud, Self-hosted |
| Platforms | Web, Windows, macOS, iOS, Android | Windows, macOS, Linux, iOS, Android |
| Support | Docs | Email, Community · 24/7 |
| Integrations | 4 integrations | 5 integrations |
| Built for | Small business, Mid-market | Small business, Mid-market, Enterprise |
| Features Microsoft Defender for Business 1/3 · FortiClient 1/3 | ||
| Ransomware protection | ✓ | ✓ |
| Parental controls | Not checked yet | — |
| Password manager | Not checked yet | — |
| Specs | ||
| Protection scope | Complete security | Complete security |
| Device limit | 5 devices | Not checked yet |
| Supported platforms | Windows, macOS, iOS, Android | Windows, macOS, Linux, iOS, Android |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | Microsoft Defender for Business is an endpoint security solution for small and medium-sized organizations with up to 300 users. It combines next-generation antivirus with ransomware attack disruption, vulnerability management, attack… Read the review → |
FortiClient is Fortinet endpoint software for organizations that need protection, secure access, and centralized device controls across a mixed environment. Its security coverage includes antivirus and AI-powered next-generation antivirus,… Read the review → |
Strengths and trade-offs
Microsoft Defender for Business — where it wins
- EDR includes automatic attack disruption and automated remediation
- Protects Windows, macOS, iOS, and Android devices
- Includes vulnerability management, APIs, SIEM, and RMM integrations
Where it doesn't
- The listed price requires annual billing
- Coverage is limited to 300 users and five devices per user
- Server protection is available only as an add-on
FortiClient — where it wins
- Combines antivirus, ransomware protection, VPN, and zero-trust access
- Supports Windows, macOS, Linux, iOS, Android, and Chromebook
- Integrates with FortiGate, FortiSandbox, FortiSIEM, and Security Fabric
Where it doesn't
- Pricing requires a sales conversation rather than public plan rates
- Editions and licenses change included features and device limits
- Its strongest fit depends on an existing Fortinet security environment
- Microsoft Defender for Business9.4/10 · 30-day trial
A focused endpoint security subscription with EDR and centralized controls for small businesses.
Visit MicrosoftFull verdict → - FortiClient8.9/10 · Pricing on request
A broad endpoint security client for teams already invested in Fortinet infrastructure.
Visit FortinetFull verdict →
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- Microsoft Defender for Business vs Kaspersky Antivirus
- Microsoft Defender for Business vs Avast One
- Bitdefender GravityZone Small Business Security vs FortiClient
- Bitdefender Total Security vs FortiClient
All antivirus software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update





