Head-to-head · Antivirus Software
Microsoft Defender for Business vs Kaspersky Plus Internet Security
Microsoft Defender for Business leads on 0 checks, Kaspersky Plus Internet Security on 1, and 4 are even. Who comes out ahead on the 5 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 trialboth
- Most featuresKaspersky Plus Internet Security · 3 of 3
Microsoft Defender for Business scores higher on our rubric for antivirus software: 9.4 against 8.8 out of 10; our editors rank them #1 and #6.
Kaspersky Plus Internet Security leads on device limit: 10 devices versus 5 devices.
Microsoft Defender for Business is the better fit for small businesses needing managed endpoint security. Kaspersky Plus Internet Security is the better fit for single-device users wanting a full security suite.
- Microsoft Defender for Business fits best
Small businesses needing managed endpoint security
- Kaspersky Plus Internet Security fits best
Single-device users wanting a full security suite
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Side by side
| Feature | Microsoft Defender for Business 9.4/10 Visit ↗ | Kaspersky Plus Internet Security 8.8/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 8.8 |
| Ranking | #1 in Antivirus Software | #6 in Antivirus Software |
| Best for | Small businesses needing managed endpoint security | Single-device users wanting a full security suite |
| Pricing model | Paid | Paid |
| Starting price | $3/user/mo | 30-day trial |
| Free plan | — | — |
| Free trial | 30 days | 30 days |
| Free trial length | 30 days · card required | 30 days |
| Money-back guarantee | 7 days | 30 days |
| Deployment | Cloud, Mobile | Desktop, Mobile |
| Platforms | Web, Windows, macOS, iOS, Android | Windows, macOS, Linux, iOS, Android |
| Support | Docs | Phone, Tickets, Docs |
| Built for | Small business, Mid-market | Solo, Small business |
| Features Microsoft Defender for Business 1/3 · Kaspersky Plus Internet Security 3/3 | ||
| Ransomware protection | ✓ | ✓ |
| Parental controls | Not checked yet | ✓ (best) |
| Password manager | Not checked yet | ✓ (best) |
| Specs | ||
| Protection scope | Complete security | Complete security |
| Device limit | 5 devices | 10 devices (best) |
| Supported platforms | Windows, macOS, iOS, Android | Windows, macOS, Linux, Android, iOS |
| 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 → |
Kaspersky Plus Internet Security is a paid subscription antivirus product for individuals and families who want more than malware detection on a single device. Its security coverage includes real-time antivirus, anti-malware,… 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
Kaspersky Plus Internet Security — where it wins
- Covers antivirus, ransomware, firewall, phishing, and payment threats
- Includes unlimited VPN, password manager, and data-leak checking
- Supports Windows, macOS, Linux, Android, and iOS
Where it doesn't
- The listed Kaspersky Plus plan covers one device
- There is no free plan
- Pricing varies by region and includes an introductory offer structure
- 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 → - Kaspersky Plus Internet Security8.8/10 · 30-day trial
A broad security suite for one device, with VPN and password management included.
Visit KasperskyFull verdict →
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- Bitdefender GravityZone Small Business Security vs Kaspersky Plus Internet Security
- Bitdefender Total Security vs Kaspersky Plus Internet Security
All antivirus software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update





