Acronis 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 Apr 2026 8 min read

Acronis

0.0 (0 reviews)

Acronis provides an integrated cyber protection platform that combines backup, disaster recovery, and next-generation anti-malware to keep your data and systems secure from modern threats.

Starting at $4.17/mo
Free Trial 30 days
VS

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 Acronis Tenable Nessus
Website acronis.com tenable.com
Pricing Model Subscription Freemium
Starting Price $4.17/month Free
FREE Trial ✓ 30 days 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 desktop saas on-premise desktop
Integrations Microsoft 365 Google Workspace Azure AWS ConnectWise Kaseya Autotask AEM Whmcs cPanel ServiceNow Splunk AWS Microsoft Azure Google Cloud Platform Jira Slack IBM QRadar
Target Users small-business mid-market enterprise small-business mid-market enterprise
Target Industries
Customer Count 0 0
Founded Year 2003 2002
Headquarters Schaffhausen, Switzerland Columbia, USA

Overview

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Acronis

Acronis Cyber Protect offers a unified approach to keeping your digital life or business operations running smoothly. Instead of juggling separate tools for antivirus, backup, and patch management, you get a single console that handles everything. You can protect your physical, virtual, and cloud workloads from a centralized dashboard, ensuring that your data is always available and your systems are shielded from ransomware and other cyberattacks.

The platform is designed for service providers, small businesses, and individual users who need reliable data protection without the complexity of managing multiple vendors. Whether you are looking to secure a single home computer or manage thousands of endpoints across a global enterprise, you can deploy automated backups and real-time protection that scales with your specific infrastructure needs.

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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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Acronis Features

  • Integrated Backup Create full-image, differential, or incremental backups of your entire system to ensure you never lose critical data.
  • Active Ransomware Protection Stop ransomware attacks in real-time with AI-based technology that detects and reverses unauthorized encryption of your files.
  • Disaster Recovery Spin up your critical workloads in the Acronis Cloud during an outage to keep your business running.
  • Vulnerability Assessments Scan your systems for security gaps and outdated software so you can close entry points for hackers.
  • Remote Desktop Tools Access your machines remotely to provide support or manage files from anywhere in the world through a secure connection.
  • Universal Restore Restore your entire system to new or dissimilar hardware with just a few clicks, minimizing your downtime.
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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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Acronis Pricing

Essentials
$4.17
  • Flexible backups
  • Ransomware protection
  • Cryptomining blocking
  • Technical support
  • One-year subscription
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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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Acronis

Pros

  • Fast backup and recovery speeds for large datasets
  • Unified interface simplifies managing multiple security tasks
  • Excellent ransomware detection and automatic file restoration
  • Wide support for various operating systems and platforms

Cons

  • Initial setup can be complex for non-technical users
  • Resource usage can be high during full system scans
  • Customer support response times vary by plan level
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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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