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Cybersecurity tools: CrowdStrike Falcon Insight XDR vs. Tenable Nessus Professional 2025

Quick Verdict

CrowdStrike Falcon Insight XDR is a comprehensive XDR solution excelling in threat detection and response across diverse environments, while Tenable Nessus Professional 2025 is a robust vulnerability assessment tool known for its accuracy and compliance features. The choice depends on whether the priority is broad threat management or in-depth vulnerability scanning.

Key features – Side-by-Side

AttributeCrowdStrike Falcon Insight XDRTenable Nessus Professional 2025
NameCrowdStrike Falcon Insight XDRTenable Nessus Professional 2025
DescriptionUses AI, machine learning, and behavioral analysis to detect and classify threats. Provides unified visibility and protection across endpoints, cloud, identity, and mobile environments.A vulnerability assessment solution with high accuracy and low false positive rates, offering wide OS and device support, customizable scanning, and compliance reporting.
Threat Detection AccuracyHigh accuracy and zero false positives in ransomware protection (SE Labs). 100% detection, protection, and accuracy in SE Labs' Enterprise Advanced Security (EDR) Ransomware Test in 2024.High accuracy with the lowest false positive rate in the industry, achieving six-sigma accuracy (0.32 defects per million scans).
Endpoint Coverage (OS Support)Endpoints, cloud, identity, and mobile environments, extending to extended internet of things (XIoT) assets.Windows, macOS, Linux, network devices (Cisco, Juniper, HP, F5, SonicWall), and mobile devices (via MobileIron and VMware AirWatch). Supported Linux distributions include Amazon Linux, CentOS Stream, Debian, and Fedora.
Integration Capabilities (SIEM, SOAR)Integrates with SIEMs, firewalls, intrusion detection systems, and SOAR capabilities through Falcon Fusion. Integrates with Zscaler Zero Trust Exchange and Netskope SSE. Supports third-party data ingestion up to 10GB per day for free.Integrates with SIEM systems, firewalls, and endpoint protection tools. Can combine data from third-party security tools using Tenable One Connectors.
Real-time Response CapabilitiesFalcon Real Time Response (RTR) allows for remote remediation of threats with automated response actions.Leverages dynamically compiled plugins that update automatically in real-time. Integrates with Tenable Research for real-time threat intelligence.
Vulnerability Scanning FrequencyNot availableAllows users to schedule scans to run once, daily, weekly, monthly, or yearly. Frequency is customizable.
Reporting and Analytics FeaturesOffers reports and analytics for threat intelligence and security posture, including MITRE ATT&CK framework integration, automatic sandbox submissions, and threat actor profiles.Offers customizable reporting features, including executive summaries and compliance checks. Reports can be tailored to specific compliance frameworks.
Ease of Deployment and ManagementLightweight agent designed for rapid deployment, often without requiring reboots. Scalable cloud-native architecture.User-friendly with an intuitive interface. Includes policy creation wizards for quick configuration of accurate scans.
Scalability for Enterprise EnvironmentsBuilt on a cloud-native architecture designed for scalability and high performance, offering flexible deployment options.Trusted by numerous organizations, including a significant portion of the Fortune 500 and Global 2000 companies. Can be deployed on various platforms, including Raspberry Pi.
False Positive RateFalse positives can be an issue (according to some sources).Industry-low false positive rate.
Compliance Reporting (e.g., PCI DSS, HIPAA)Provides reports and features to support compliance with relevant regulations.Offers pre-defined audit policies tailored to specific compliance and regulatory frameworks like PCI DSS and HIPAA.
Customization and Configuration OptionsDetection rules, policies, and reporting features are customizable.Allows users to create custom plugins and audit files. Detection rules, policies, and reporting features are also customizable.
Cost and Licensing Model$184.99 per device annually for Falcon Enterprise; large-scale deployments range from $20,000 to $175,000 annually; Falcon Complete MDR pricing available upon request$2,990/year per license. Multi-year licenses are also available.

Overall Comparison

CrowdStrike Falcon Insight XDR: $184.99/device annually (Falcon Enterprise), Tenable Nessus Professional 2025: $2,990/year per license, Tenable Nessus Professional 2025 False Positive Rate: 0.32 defects per million scans (six-sigma accuracy)

Pros and Cons

CrowdStrike Falcon Insight XDR

Pros:
  • High threat detection accuracy using AI, machine learning, and behavioral analysis
  • Unified visibility and protection across endpoints, cloud, identity, and mobile environments
  • Integration with SIEMs, firewalls, intrusion detection systems, and SOAR capabilities
  • Real-time response capabilities for remote remediation of threats
  • Prioritized observability of vulnerabilities
  • Comprehensive reporting and analytics for threat intelligence and security posture
  • Rapid deployment with a lightweight agent
  • Scalable cloud-native architecture
  • Customizable detection rules, policies, and reporting features
  • Compliance reporting features
Cons:
  • Threat detection rate may be lower than some competitors due to a lack of deep visibility capabilities
  • False positives can be an issue (according to some sources)

Tenable Nessus Professional 2025

Pros:
  • High threat detection accuracy
  • Low false positive rate
  • Wide range of OS and device support
  • Seamless integration with existing security infrastructure
  • Customizable scanning frequency
  • Comprehensive reporting and analytics
  • User-friendly deployment and management
  • Scalable for large enterprise environments
  • Compliance reporting for PCI DSS, HIPAA, etc.
  • Highly customizable detection rules and policies
Cons:
  • No major disadvantages reported.

User Experiences and Feedback