Microsoft Defender for Business vs Sublime Security

Microsoft Defender for Business7.9Visit Sublime Security7.9Visit

Microsoft Defender for Business #6 in User Threat Prevention Software 7.9/10 30-day trial Free trial✓ 0 of 5 features Visit Microsoft

vs

Sublime Security #7 in User Threat Prevention Software 7.9/10 Free plan Free plan✓ 0 of 5 features Try Sublime Security

• Microsoft Defender for Business fits best

  Small businesses seeking endpoint protection

• Sublime Security fits best

  Teams wanting flexible email detection and remediation

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Side by side

Feature	Microsoft Defender for Business 7.9/10 Visit ↗	Sublime Security 7.9/10 Visit ↗
At a glance
Editor score	7.9	7.9
Ranking	#6 in User Threat Prevention Software	#7 in User Threat Prevention Software
Best for	Small businesses seeking endpoint protection	Teams wanting flexible email detection and remediation
Pricing model	Paid	Free plan + paid
Starting price	$3/user/mo	—
Free plan	—	✓ (best)
Free trial	30 days	—
Deployment	Cloud, Mobile	Cloud, Self-hosted
Platforms	Web, Windows, macOS, iOS, Android	Web
Integrations	4 integrations	9 integrations
Features Microsoft Defender for Business 0/5 · Sublime Security 0/5
Phishing simulations	Not checked yet	Not checked yet
Browser isolation	Not checked yet	Not checked yet
Attachment sandboxing	Not checked yet	Not checked yet
User report button	Not checked yet	Not checked yet
Automated remediation	Not checked yet	Not checked yet
Specs
Protected channels	Not checked yet	Not checked yet
Our review
Pros	Combines antivirus, EDR, and ransomware attack disruption. Automates investigation and remediation of detected issues. Covers Windows, macOS, iOS, and Android devices.	Detects phishing, BEC, malware, policy violations, and impersonation Supports custom MQL rules, backtesting, and behavioral threat hunting Automates user-report triage and mailbox or campaign-level remediation
Cons	The $3 per-user monthly price requires annual billing. The 30-day trial requires a payment card. Its focus is device security, not broader user-threat channels.	The free Core plan is limited to the first 100 mailboxes Enterprise pricing requires a demo request Its focus is email security rather than broader user threat prevention
Our verdict	Microsoft Defender for Business provides endpoint security for small and medium-sized businesses, with support for up to 300 users and five devices per user. Its protection spans Windows, macOS, iOS, and Android, making it a fit for… Read the review →	Sublime Security is an AI-powered email security platform for organizations using Microsoft 365, Google Workspace, IMAP, or direct APIs. It targets security teams that need detection and response across phishing, business email compromise,… Read the review →

Strengths and trade-offs

• Microsoft Defender for Business — where it wins

  • Combines antivirus, EDR, and ransomware attack disruption.
  • Automates investigation and remediation of detected issues.
  • Covers Windows, macOS, iOS, and Android devices.

  Where it doesn't

  • The $3 per-user monthly price requires annual billing.
  • The 30-day trial requires a payment card.
  • Its focus is device security, not broader user-threat channels.

• Sublime Security — where it wins

  • Detects phishing, BEC, malware, policy violations, and impersonation
  • Supports custom MQL rules, backtesting, and behavioral threat hunting
  • Automates user-report triage and mailbox or campaign-level remediation

  Where it doesn't

  • The free Core plan is limited to the first 100 mailboxes
  • Enterprise pricing requires a demo request
  • Its focus is email security rather than broader user threat prevention

• Microsoft Defender for Business7.9/10 · 30-day trial

  Affordable endpoint protection with EDR and ransomware response, billed annually.

  Visit MicrosoftFull verdict →
• Sublime Security7.9/10 · Free plan

  Flexible email detection, threat hunting, and remediation, with a free tier for up to 100 mailboxes.

  Try Sublime SecurityFull verdict →