Microsoft Defender for Business vs Lasso Security AI Security Posture Management

Microsoft Defender for Business7.9Visit Lasso Security AI Security Posture Management7.8Visit

Higher score Microsoft Defender for Business #4 in AI Security Posture Management (AI-SPM) Tools Software 7.9/10 30-day trial Free trial✓ 0 of 4 features Visit Microsoft

vs

Lasso Security AI Security Posture Management #6 in AI Security Posture Management (AI-SPM) Tools Software 7.8/10 Pricing on request ✓ 4 of 4 features Visit Lasso Security

• Microsoft Defender for Business fits best

  Small businesses needing endpoint security first

• Lasso Security AI Security Posture Management fits best

  Enterprises governing many AI agents

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Side by side

Feature	Microsoft Defender for Business 7.9/10 Visit ↗	Lasso Security AI Security Posture Management 7.8/10 Visit ↗
At a glance
Editor score	7.9	7.8
Ranking	#4 in AI Security Posture Management (AI-SPM) Tools Software	#6 in AI Security Posture Management (AI-SPM) Tools Software
Best for	Small businesses needing endpoint security first	Enterprises governing many AI agents
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	Web
Support	Docs	Email
Integrations	4 integrations	10 integrations
Built for	Small business, Mid-market	Enterprise, Mid-market
Features Microsoft Defender for Business 0/4 · Lasso Security AI Security Posture Management 4/4
AI asset discovery	Not checked yet	✓ (best)
Model inventory	Not checked yet	✓ (best)
Shadow AI detection	Not checked yet	✓ (best)
Remediation workflows	Not checked yet	✓ (best)
Specs
Monitored AI assets	Not checked yet	Not checked yet
Policy frameworks	Not checked yet	Not checked yet
Deployment model	Not checked yet	Hybrid
Our review
Pros	$3 per user monthly with annual billing and a 30-day trial Automated investigation, remediation, and ransomware attack disruption Protects Windows, macOS, iOS, and Android devices	Maps agents, models, tools, APIs, databases, prompts and MCP servers Assesses misconfigurations, risky access, attack paths and supply-chain risks Maps findings to frameworks and points developers to affected components
Cons	Annual billing is required for the listed $3 per-user rate Support channels list documentation only Focuses on endpoint security, not AI asset discovery or posture management	Pricing requires contacting sales rather than choosing a published plan Its focus on AI-agent security may not suit broader security needs Listed support channel is email
Our verdict	Microsoft Defender for Business is an endpoint security service for small and medium-sized businesses with up to 300 users. It covers Windows, macOS, iOS, and Android devices, with cloud and mobile deployment options. The product combines… Read the review →	Lasso Security AI Security Posture Management helps security teams discover and govern AI agents across code repositories, cloud environments and agent-builder platforms. It is aimed at enterprises and mid-market organizations managing… Read the review →

Strengths and trade-offs

• Microsoft Defender for Business — where it wins

  • $3 per user monthly with annual billing and a 30-day trial
  • Automated investigation, remediation, and ransomware attack disruption
  • Protects Windows, macOS, iOS, and Android devices

  Where it doesn't

  • Annual billing is required for the listed $3 per-user rate
  • Support channels list documentation only
  • Focuses on endpoint security, not AI asset discovery or posture management

• Lasso Security AI Security Posture Management — where it wins

  • Maps agents, models, tools, APIs, databases, prompts and MCP servers
  • Assesses misconfigurations, risky access, attack paths and supply-chain risks
  • Maps findings to frameworks and points developers to affected components

  Where it doesn't

  • Pricing requires contacting sales rather than choosing a published plan
  • Its focus on AI-agent security may not suit broader security needs
  • Listed support channel is email

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

  Affordable endpoint protection with strong remediation, but limited AI-SPM coverage.

  Visit MicrosoftFull verdict →
• Lasso Security AI Security Posture Management7.8/10 · Pricing on request

  Continuous AI-agent discovery, risk analysis and developer-focused remediation guidance.

  Visit Lasso SecurityFull verdict →