Tanium Integrity Monitor vs OSSEC

Tanium Integrity Monitor8.8Visit OSSEC7.9Visit

Higher score Tanium Integrity Monitor #2 in File Integrity Monitoring Software 8.8/10 Pricing on request ✓ 3 of 4 features Visit Tanium

vs

OSSEC #8 in File Integrity Monitoring Software 7.9/10 Free plan · 14-day trial Free planFree trial✓ 0 of 4 features Visit OSSEC

• Tanium Integrity Monitor fits best

  Endpoint teams investigating integrity changes

• OSSEC fits best

  Open-source FIM with optional managed features

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Side by side

Feature	Tanium Integrity Monitor 8.8/10 Visit ↗	OSSEC 7.9/10 Visit ↗
At a glance
Editor score	8.8	7.9
Ranking	#2 in File Integrity Monitoring Software	#8 in File Integrity Monitoring Software
Best for	Endpoint teams investigating integrity changes	Open-source FIM with optional managed features
Pricing model	Paid	Free plan + paid
Starting price	Pricing on request	$55/device/yr
Free plan	Not checked yet	✓ (best)
Free trial	—	14 days
Deployment	Cloud, Self-hosted	Cloud, Self-hosted
Platforms	Web	Windows, macOS, Linux
Support	Tickets, Docs	Community, Docs · 24/7
Compliance	SOC 2, ISO 27001, GDPR, SSO/SAML	PCI DSS, HIPAA, GDPR
Integrations	5 integrations	8 integrations
Built for	Enterprise	Solo, Small business, Mid-market, Enterprise
Features Tanium Integrity Monitor 3/4 · OSSEC 0/4
Real-time alerts	✓ (best)	Not checked yet
Configuration monitoring	✓ (best)	Not checked yet
Compliance reports	✓ (best)	Not checked yet
Agentless monitoring	—	Not checked yet
Specs
Deployment	Hybrid	Not checked yet
Supported platforms	Windows, Linux, Solaris, AIX	Not checked yet
Our review
Pros	Real-time monitoring and alerts for file and registry changes Detailed who, what, when, where, and how endpoint context Compliance watchlists plus investigation and reporting workflows	Free open-source monitoring with file and registry integrity checks Agent and agentless monitoring across Windows, macOS, Linux, and self-hosted systems Alerts, active response, centralized policies, and broad cloud integrations
Cons	Pricing requires contact with Tanium Designed for enterprise rather than smaller organizations Requires endpoint components; it is not agentless	The free OSSEC plan includes only a basic out-of-the-box ruleset OSSEC+ requires registration despite adding machine learning and more rules Advanced scanning, antivirus management, and professional support require Atomic OSSEC
Our verdict	Tanium Integrity Monitor is an enterprise file and registry integrity monitoring module for teams investigating changes across distributed endpoint estates. It records activity involving operating systems, applications, log files, and… Read the review →	OSSEC is an open-source host-based intrusion detection system for individuals, developers, security teams, and organizations that need file integrity monitoring alongside broader host and network visibility. It analyzes logs, monitors file… Read the review →

Strengths and trade-offs

• Tanium Integrity Monitor — where it wins

  • Real-time monitoring and alerts for file and registry changes
  • Detailed who, what, when, where, and how endpoint context
  • Compliance watchlists plus investigation and reporting workflows

  Where it doesn't

  • Pricing requires contact with Tanium
  • Designed for enterprise rather than smaller organizations
  • Requires endpoint components; it is not agentless

• OSSEC — where it wins

  • Free open-source monitoring with file and registry integrity checks
  • Agent and agentless monitoring across Windows, macOS, Linux, and self-hosted systems
  • Alerts, active response, centralized policies, and broad cloud integrations

  Where it doesn't

  • The free OSSEC plan includes only a basic out-of-the-box ruleset
  • OSSEC+ requires registration despite adding machine learning and more rules
  • Advanced scanning, antivirus management, and professional support require Atomic OSSEC

• Tanium Integrity Monitor8.8/10 · Pricing on request

  Enterprise monitoring with detailed endpoint context, watchlists, and investigation workflows.

  Visit TaniumFull verdict →
• OSSEC7.9/10 · Free plan · 14-day trial

  A flexible open-source FIM with optional paid rules, scanning, and support.

  Visit OSSECFull verdict →