SentinelOne Singularity vs Tenable Nessus Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated May 2026 8 min read

SentinelOne Singularity

0.0 (0 reviews)

SentinelOne Singularity is an AI-powered cybersecurity platform that provides automated endpoint protection, detection, and response to stop threats across your entire enterprise environment in real-time.

Starting at $??/mo
Free Trial NO FREE TRIAL
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Tenable Nessus

0.0 (0 reviews)

Nessus is a vulnerability assessment solution providing deep-point-in-time scans to identify security flaws, misconfigurations, and malware across your modern IT infrastructure, including cloud, containers, and traditional assets.

Starting at Free
Free Trial 7 days

Quick Comparison

Feature SentinelOne Singularity Tenable Nessus
Website sentinelone.com tenable.com
Pricing Model Subscription Freemium
Starting Price $??/month Free
FREE Trial ✘ No free trial ✓ 7 days free trial
Free Plan ✘ No free plan ✓ Has free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment saas on-premise mobile saas on-premise desktop
Integrations Splunk ServiceNow Okta Slack Microsoft Teams Mimecast Zscaler Fortinet Check Point AWS ServiceNow Splunk AWS Microsoft Azure Google Cloud Platform Jira Slack IBM QRadar
Target Users mid-market enterprise small-business mid-market enterprise
Target Industries
Customer Count 0 0
Founded Year 2013 2002
Headquarters Mountain View, USA Columbia, USA

Overview

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SentinelOne Singularity

SentinelOne Singularity is an automated security platform designed to protect your organization from modern cyber threats. Instead of relying on manual intervention, you get a system that uses artificial intelligence to identify and block malware, ransomware, and zero-day attacks before they cause damage. You can manage your entire security posture from a single console that covers endpoints, cloud workloads, and identity.

The platform is built for organizations that need high-speed protection without the overhead of a massive security team. It automatically correlates data to provide a clear picture of every attack, allowing you to roll back affected files to their original state with one click. Whether you are a mid-sized business or a global enterprise, you can scale your defenses across Windows, macOS, Linux, and Kubernetes environments seamlessly.

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Tenable Nessus

Nessus helps you identify and fix security vulnerabilities before attackers can exploit them. You can scan your entire environment—including cloud instances, web applications, and traditional network hardware—to find missing patches, software flaws, and configuration errors. It provides a clear view of your attack surface so you can prioritize the most critical risks to your business.

You can choose between different versions depending on your needs, ranging from a free version for educators and students to professional and expert versions for security consultants. It simplifies the complex task of vulnerability assessment with pre-built templates and automated reporting. Whether you are securing a small office or a complex hybrid-cloud environment, you can rely on its extensive plugin library to stay protected against the latest threats.

Overview

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SentinelOne Singularity Features

  • AI-Powered Prevention Block known and unknown malware in real-time using static and behavioral AI models that don't require internet connectivity.
  • One-Click Remediation Reverse the effects of an attack and restore your files to their healthy state instantly with automated rollback capabilities.
  • Deep Visibility Track every process and event across your network with a unified data lake that simplifies threat hunting and investigations.
  • Automated EDR Detect sophisticated attacks automatically and get clear, correlated stories of how a threat entered and moved through your system.
  • Device Control Manage your USB and Bluetooth peripherals across all endpoints to prevent data exfiltration and unauthorized hardware access.
  • Rogue Discovery Find unprotected and unmanaged devices on your network automatically so you can close security gaps before they are exploited.
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Tenable Nessus Features

  • Pre-Built Scan Templates. Start scanning immediately using over 450 pre-configured templates for common audits like PCI-DSS and HIPAA compliance.
  • Live Results. Perform offline vulnerability analysis against your scan history to find new threats without running a new scan.
  • Cloud Infrastructure Scanning. Assess your cloud-native assets and identify misconfigurations in AWS, Azure, and Google Cloud environments easily.
  • Customizable Reporting. Create tailored reports in multiple formats like HTML or PDF to share critical security findings with your stakeholders.
  • Web Application Scanning. Identify vulnerabilities in your web applications and APIs to prevent common attacks like SQL injection and cross-site scripting.
  • External Surface Discovery. Find and map your internet-facing assets to understand what an attacker sees when looking at your organization.

Pricing Comparison

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SentinelOne Singularity Pricing

Singularity Core
$??
  • AI-based malware prevention
  • Behavioral threat detection
  • Basic remediation and kill
  • Device control for USB
  • Personal firewall management
  • Deployment for Windows, Mac, Linux
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Tenable Nessus Pricing

Nessus Essentials
$0
  • Scan up to 16 IP addresses
  • High-speed accurate scanning
  • Community support access
  • Standard vulnerability assessment
  • Free for educators and students

Pros & Cons

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SentinelOne Singularity

Pros

  • Automated rollback feature saves hours of manual recovery time
  • Single agent architecture has minimal impact on system performance
  • Intuitive management console simplifies complex security tasks
  • Highly effective at stopping ransomware before encryption starts

Cons

  • Initial configuration requires careful tuning to avoid false positives
  • Premium features are locked behind higher-priced tiers
  • Offline management capabilities are more limited than cloud version
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Tenable Nessus

Pros

  • Extremely high accuracy with very low false-positive rates
  • Massive library of plugins updated daily for new threats
  • Easy to set up and run your first scan quickly
  • Detailed remediation instructions help you fix issues faster

Cons

  • Annual subscription cost is high for small businesses
  • Interface can feel dated compared to newer cloud platforms
  • Reporting customization requires a learning curve to master
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