# Microsoft Defender for Endpoint, Tenable Security Center vs Tenable Nessus Comparison | | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Star Rating** | 4.4 out of 5 | 4.6 out of 5 | 4.5 out of 5 | | **Total Reviews** | 310 | 83 | 301 | | **Largest Market Segment** | Enterprise (38.5% of reviews) | Enterprise (64.4% of reviews) | Mid-Market (39.4% of reviews) | | **Entry Level Price** | No pricing available | No pricing available | $3,390.00 1 License With One-Time Purchase | --- ## Top Pros & Cons ### Microsoft Defender for Endpoint Pros: - Ease of Use (20 reviews) - Threat Detection (18 reviews) Cons: - Compatibility Issues (8 reviews) - Complexity (8 reviews) ### Tenable Security Center Pros: - Features (2 reviews) - Compliance Management (1 reviews) Cons: - Complexity (1 reviews) - Complex Queries (1 reviews) ### Tenable Nessus Pros: - Vulnerability Identification (21 reviews) - Vulnerability Detection (19 reviews) Cons: - Slow Scanning (8 reviews) - Expensive (6 reviews) --- ## Ratings Comparison | Rating | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Meets Requirements** | 8.6 (249 reviews) | 9.2 (45 reviews) | 9.0 (248 reviews) | | **Ease of Use** | 8.6 (255 reviews) | 8.6 (49 reviews) | 8.9 (250 reviews) | | **Ease of Setup** | 8.5 (165 reviews) | 8.6 (43 reviews) | 8.8 (172 reviews) | | **Ease of Admin** | 8.6 (156 reviews) | 8.6 (43 reviews) | 8.9 (161 reviews) | | **Quality of Support** | 8.5 (239 reviews) | 8.5 (48 reviews) | 8.4 (229 reviews) | | **Has the product been a good partner in doing business?** | 8.6 (152 reviews) | 8.8 (40 reviews) | 8.7 (149 reviews) | | **Product Direction (% positive)** | 9.2 (248 reviews) | 8.4 (45 reviews) | 8.9 (238 reviews) | --- ## Pricing ### Microsoft Defender for Endpoint #### Entry-Level Pricing No pricing available #### Free Trial No information available ### Tenable Security Center #### Entry-Level Pricing No pricing available #### Free Trial No information available ### Tenable Nessus #### Entry-Level Pricing Plan: Pro - 1 Year Price: $3,390.00 1 License With One-Time Purchase Description: 1-year license of the industry-leading vulnerability assessment solution. Key Features: - Automate your vulnerability scanning process [Browse all 4 editions](https://www.g2.com/products/tenable-nessus/pricing) #### Free Trial Yes --- ## Features Comparison By Category ### Dynamic Application Security Testing (DAST) | Product | Score | Reviews | |---|---|---| | **Microsoft Defender for Endpoint** | N/A | N/A | | **Tenable Security Center** | N/A | N/A | | **Tenable Nessus** | N/A | N/A | #### Administration | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **API / Integrations** | Not enough data | Not enough data | Not enough data | | **Extensibility** | Not enough data | Not enough data | Not enough data | #### Analysis | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Reporting and Analytics** | Not enough data | Not enough data | Not enough data | | **Issue Tracking** | Not enough data | Not enough data | Not enough data | | **Static Code Analysis** | Not enough data | Not enough data | Not enough data | | **Vulnerability Scan** | Not enough data | Not enough data | Not enough data | | **Code Analysis** | Not enough data | Not enough data | Not enough data | #### Testing | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Manual Testing** | Not enough data | Not enough data | Not enough data | | **Test Automation** | Not enough data | Not enough data | Not enough data | | **Compliance Testing** | Not enough data | Not enough data | Not enough data | | **Black-Box Scanning** | Not enough data | Not enough data | Not enough data | | **Detection Rate** | Not enough data | Not enough data | Not enough data | | **False Positives** | Not enough data | Not enough data | Not enough data | ### Vulnerability Scanner | Product | Score | Reviews | |---|---|---| | **Microsoft Defender for Endpoint** | N/A | N/A | | **Tenable Security Center** | 8.6/10 | 43 | | **Tenable Nessus** | 8.2/10 | 158 | #### Performance | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Issue Tracking** | Not enough data | 8.0 (29 reviews) | Feature Not Available | | **Detection Rate** | Not enough data | 8.8 (33 reviews) | 8.9 (139 reviews) ✓ Verified | | **False Positives** | Not enough data | 7.9 (33 reviews) | 6.7 (136 reviews) ✓ Verified | | **Automated Scans** | Not enough data | 9.1 (35 reviews) | 9.0 (135 reviews) ✓ Verified | #### Network | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Compliance Testing** | Not enough data | 9.0 (29 reviews) | 8.8 (134 reviews) ✓ Verified | | **Perimeter Scanning** | Not enough data | 9.1 (31 reviews) | 8.8 (127 reviews) ✓ Verified | | **Configuration Monitoring** | Not enough data | 8.9 (24 reviews) | 8.4 (110 reviews) ✓ Verified | #### Application | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Manual Application Testing** | Not enough data | 8.5 (19 reviews) | Feature Not Available | | **Static Code Analysis** | Not enough data | 7.9 (15 reviews) | 7.3 (83 reviews) | | **Black Box Testing** | Not enough data | 8.3 (20 reviews) | 7.8 (102 reviews) | #### Agentic AI - Vulnerability Scanner | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Autonomous Task Execution** | Not enough data | Not enough data | 8.1 (9 reviews) | | **Proactive Assistance** | Not enough data | Not enough data | 7.9 (8 reviews) | ### Endpoint Protection Platforms | Product | Score | Reviews | |---|---|---| | **Microsoft Defender for Endpoint** | 8.6/10 | 26 | | **Tenable Security Center** | N/A | N/A | | **Tenable Nessus** | N/A | N/A | #### Administration | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Compliance** | 8.8 (23 reviews) | Not enough data | Not enough data | | **Web Control** | 8.3 (22 reviews) | Not enough data | Not enough data | | **Application Control** | 8.7 (23 reviews) | Not enough data | Not enough data | | **Asset Management** | 8.6 (22 reviews) | Not enough data | Not enough data | | **Device Control** | 8.8 (21 reviews) | Not enough data | Not enough data | #### Functionality | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **System Isolation** | 9.0 (22 reviews) | Not enough data | Not enough data | | **Firewall** | 8.5 (22 reviews) | Not enough data | Not enough data | | **Endpoint Intelligence** | 8.9 (23 reviews) | Not enough data | Not enough data | | **Malware Detection** | 8.6 (22 reviews) | Not enough data | Not enough data | #### Analysis | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Automated Remediation** | 8.5 (23 reviews) | Not enough data | Not enough data | | **Incident Reports** | 8.5 (22 reviews) | Not enough data | Not enough data | | **Behavioral Analysis** | 8.3 (21 reviews) | Not enough data | Not enough data | ### Risk-Based Vulnerability Management | Product | Score | Reviews | |---|---|---| | **Microsoft Defender for Endpoint** | N/A | N/A | | **Tenable Security Center** | 8.7/10 | 43 | | **Tenable Nessus** | N/A | N/A | #### Risk Analysis | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Risk Scoring** | Not enough data | 9.1 (35 reviews) | Not enough data | | **Reporting** | Not enough data | 8.6 (36 reviews) | Not enough data | | **Risk-Prioritization** | Not enough data | 9.4 (36 reviews) | Not enough data | #### Vulnerability Assesment | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Vulnerability Scanning** | Not enough data | 9.6 (35 reviews) | Not enough data | | **Vulnerability Intelligence** | Not enough data | 9.5 (35 reviews) | Not enough data | | **Contextual Data** | Not enough data | 9.3 (31 reviews) | Not enough data | | **Dashboards** | Not enough data | 8.9 (35 reviews) | Not enough data | #### Automation | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Automated Remediation** | Not enough data | 7.5 (21 reviews) | Not enough data | | **Workflow Automation** | Not enough data | 7.8 (27 reviews) | Not enough data | | **Security Testing** | Not enough data | 8.1 (26 reviews) | Not enough data | | **Test Automation** | Not enough data | 8.2 (25 reviews) | Not enough data | ### API Security | Product | Score | Reviews | |---|---|---| | **Microsoft Defender for Endpoint** | N/A | N/A | | **Tenable Security Center** | N/A | N/A | | **Tenable Nessus** | N/A | N/A | #### API Management | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **API Discovery** | Not enough data | Not enough data | Not enough data | | **API Monitoring** | Not enough data | Not enough data | Not enough data | | **Reporting** | Not enough data | Not enough data | Not enough data | | **Change Management** | Not enough data | Not enough data | Not enough data | #### Security Testing | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Compliance Monitoring** | Not enough data | Not enough data | Not enough data | | **API Verification** | Not enough data | Not enough data | Not enough data | | **API Testing** | Not enough data | Not enough data | Not enough data | #### Security Management | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Security and Policy Enforcement** | Not enough data | Not enough data | Not enough data | | **Anomoly Detection** | Not enough data | Not enough data | Not enough data | | **Bot Detection** | Not enough data | Not enough data | Not enough data | ### Attack Surface Management | Product | Score | Reviews | |---|---|---| | **Microsoft Defender for Endpoint** | N/A | N/A | | **Tenable Security Center** | N/A | N/A | | **Tenable Nessus** | 8.3/10 | 6 | #### Asset Management | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Asset Discovery** | Not enough data | Not enough data | 6.9 (6 reviews) | | **Shadow IT Detection** | Not enough data | Not enough data | 7.5 (6 reviews) | | **Change Management** | Not enough data | Not enough data | 4.7 (6 reviews) | #### Monitoring | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Gap Analysis** | Not enough data | Not enough data | 8.3 (6 reviews) | | **Vulnerability Intelligence** | Not enough data | Not enough data | 10.0 (6 reviews) | | **Compliance Monitoring** | Not enough data | Not enough data | 8.6 (6 reviews) | | **Continuous Monitoring** | Not enough data | Not enough data | 9.2 (6 reviews) | #### Risk Management | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Risk-Prioritization** | Not enough data | Not enough data | 9.2 (6 reviews) | | **Reconnaissance** | Not enough data | Not enough data | 9.2 (6 reviews) | | **At-Risk Analysis** | Not enough data | Not enough data | 8.6 (6 reviews) | | **Threat Intelligence** | Not enough data | Not enough data | 9.4 (6 reviews) | #### Generative AI | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **AI Text Summarization** | Not enough data | Not enough data | Not enough data | ### Antivirus | Product | Score | Reviews | |---|---|---| | **Microsoft Defender for Endpoint** | 8.0/10 | 57 | | **Tenable Security Center** | N/A | N/A | | **Tenable Nessus** | N/A | N/A | #### Generative AI | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **AI Text Generation** | 8.0 (52 reviews) | Not enough data | Not enough data | | **AI Text Summarization** | 8.0 (52 reviews) | Not enough data | Not enough data | ### Endpoint Detection & Response (EDR) | Product | Score | Reviews | |---|---|---| | **Microsoft Defender for Endpoint** | N/A | N/A | | **Tenable Security Center** | N/A | N/A | | **Tenable Nessus** | N/A | N/A | #### Services - Endpoint Detection & Response (EDR) | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Managed Services** | Not enough data | Not enough data | Not enough data | ### Cloud Security | Product | Score | Reviews | |---|---|---| | **Microsoft Defender for Endpoint** | N/A | N/A | | **Tenable Security Center** | N/A | N/A | | **Tenable Nessus** | N/A | N/A | #### Cloud Visibility | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Data Discovery** | Not enough data | Not enough data | Not enough data | | **Cloud Registry** | Not enough data | Not enough data | Not enough data | | **Cloud Gap Analytics** | Not enough data | Not enough data | Not enough data | #### Security | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Data Security** | Not enough data | Not enough data | Not enough data | | **Data loss Prevention** | Not enough data | Not enough data | Not enough data | | **Security Auditing** | Not enough data | Not enough data | Not enough data | #### Identity | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **SSO** | Not enough data | Not enough data | Not enough data | | **Governance** | Not enough data | Not enough data | Not enough data | | **User Analytics** | Not enough data | Not enough data | Not enough data | ### Endpoint Protection | Product | Score | Reviews | |---|---|---| | **Microsoft Defender for Endpoint** | N/A | N/A | | **Tenable Security Center** | N/A | N/A | | **Tenable Nessus** | N/A | N/A | #### System Control | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Device Control** | Not enough data | Not enough data | Not enough data | | **Web Control** | Not enough data | Not enough data | Not enough data | | **Application Control** | Not enough data | Not enough data | Not enough data | | **Asset Management** | Not enough data | Not enough data | Not enough data | | **System Isolation** | Not enough data | Not enough data | Not enough data | #### Vulnerability Prevention | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Endpoint Intelligence** | Not enough data | Not enough data | Not enough data | | **Firewall** | Not enough data | Not enough data | Not enough data | | **Malware Detection** | Not enough data | Not enough data | Not enough data | #### Security Management | Feature | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Incident Reports** | Not enough data | Not enough data | Not enough data | | **Security Validation** | Not enough data | Not enough data | Not enough data | | **Compliance ** | Not enough data | Not enough data | Not enough data | --- ## Categories **Unique to Microsoft Defender for Endpoint (3):** [Antivirus Software](https://www.g2.com/categories/antivirus), [Endpoint Detection & Response (EDR) Software](https://www.g2.com/categories/endpoint-detection-response-edr), [Endpoint Protection Platforms](https://www.g2.com/categories/endpoint-protection-platforms) **Unique to Tenable Security Center (2):** [Risk-Based Vulnerability Management Software](https://www.g2.com/categories/risk-based-vulnerability-management), [Vulnerability Scanner Software](https://www.g2.com/categories/vulnerability-scanner) **Unique to Tenable Nessus (4):** [ Attack Surface Management Software](https://www.g2.com/categories/attack-surface-management), [Vulnerability Scanner Software](https://www.g2.com/categories/vulnerability-scanner), [Dynamic Application Security Testing (DAST) Software](https://www.g2.com/categories/dynamic-application-security-testing-dast), [API Security Tools](https://www.g2.com/categories/api-security) --- ## Reviewer Demographics ### By Company Size | Segment | Microsoft Defender for Endpoint | Tenable Security Center | Tenable Nessus | |---|---|---|---| | **Small-Business** | 27.1% | 13.7% | 26.1% | | **Mid-Market** | 34.4% | 21.9% | 39.4% | | **Enterprise** | 38.5% | 64.4% | 34.5% | ### By Industry #### Microsoft Defender for Endpoint - **Information Technology and Services:** 25.5% - **Computer & Network Security:** 14.1% - **Financial Services:** 6.0% - **Computer Software:** 6.0% - **Telecommunications:** 2.3% - **Banking:** 2.3% - **Computer Networking:** 2.0% - **Airlines/Aviation:** 1.7% - **Education Management:** 1.7% - **Consumer Services:** 1.7% - **Other:** 36.6% #### Tenable Security Center - **Financial Services:** 13.7% - **Banking:** 13.7% - **Computer & Network Security:** 12.3% - **Information Technology and Services:** 9.6% - **Government Administration:** 6.8% - **Education Management:** 4.1% - **Insurance:** 4.1% - **Defense & Space:** 4.1% - **Hospital & Health Care:** 4.1% - **Pharmaceuticals:** 2.7% - **Other:** 24.7% #### Tenable Nessus - **Information Technology and Services:** 25.7% - **Computer & Network Security:** 16.5% - **Financial Services:** 7.4% - **Computer Software:** 6.0% - **Banking:** 4.6% - **Government Administration:** 3.9% - **Higher Education:** 3.2% - **Hospital & Health Care:** 2.5% - **Education Management:** 2.1% - **Telecommunications:** 2.1% - **Other:** 26.1% --- ## Alternatives ### Alternatives to Microsoft Defender for Endpoint - [ESET PROTECT](https://www.g2.com/products/eset-protect/reviews) — 4.6/5 stars (973 reviews) - [Sophos Endpoint](https://www.g2.com/products/sophos-endpoint/reviews) — 4.7/5 stars (825 reviews) - [CrowdStrike Falcon Endpoint Protection Platform](https://www.g2.com/products/crowdstrike-falcon-endpoint-protection-platform/reviews) — 4.7/5 stars (404 reviews) - [Trellix Endpoint Security](https://www.g2.com/products/trellix-endpoint-security/reviews) — 4.3/5 stars (327 reviews) - [Check Point Harmony Endpoint](https://www.g2.com/products/check-point-harmony-endpoint/reviews) — 4.5/5 stars (284 reviews) - [SentinelOne Singularity Endpoint](https://www.g2.com/products/sentinelone-singularity-endpoint/reviews) — 4.7/5 stars (201 reviews) - [ThreatDown](https://www.g2.com/products/threatdown/reviews) — 4.6/5 stars (1083 reviews) - [Bitdefender GravityZone XDR](https://www.g2.com/products/bitdefender-gravityzone-xdr/reviews) — 4.0/5 stars (85 reviews) - [Cisco Secure Endpoints](https://www.g2.com/products/cisco-secure-endpoints/reviews) — 4.5/5 stars (27 reviews) - [Cortex XDR](https://www.g2.com/products/palo-alto-networks-cortex-xdr/reviews) — 4.6/5 stars (53 reviews) ### Alternatives to Tenable Security Center - [InsightVM (Nexpose)](https://www.g2.com/products/insightvm-nexpose/reviews) — 4.4/5 stars (78 reviews) - [Qualys VMDR](https://www.g2.com/products/qualys-vmdr/reviews) — 4.4/5 stars (167 reviews) - [Wiz](https://www.g2.com/products/wiz-wiz/reviews) — 4.7/5 stars (786 reviews) - [Arctic Wolf](https://www.g2.com/products/arctic-wolf/reviews) — 4.7/5 stars (279 reviews) - [Red Hat Ansible Automation Platform](https://www.g2.com/products/red-hat-ansible-automation-platform/reviews) — 4.6/5 stars (377 reviews) - [CloudBees](https://www.g2.com/products/cloudbees/reviews) — 4.4/5 stars (622 reviews) - [Cisco Vulnerability Management (formerly Kenna.VM)](https://www.g2.com/products/cisco-vulnerability-management-formerly-kenna-vm/reviews) — 4.3/5 stars (217 reviews) - [Gearset DevOps](https://www.g2.com/products/gearset-devops/reviews) — 4.7/5 stars (292 reviews) - [Harness Platform](https://www.g2.com/products/harness-platform/reviews) — 4.6/5 stars (281 reviews) - [SentinelOne Singularity Endpoint](https://www.g2.com/products/sentinelone-singularity-endpoint/reviews) — 4.7/5 stars (201 reviews) ### Alternatives to Tenable Nessus - [Intruder](https://www.g2.com/products/intruder/reviews) — 4.8/5 stars (206 reviews) - [Invicti (formerly Netsparker)](https://www.g2.com/products/invicti-formerly-netsparker/reviews) — 4.6/5 stars (69 reviews) - [Detectify](https://www.g2.com/products/detectify/reviews) — 4.5/5 stars (51 reviews) - [Wiz](https://www.g2.com/products/wiz-wiz/reviews) — 4.7/5 stars (786 reviews) - [Burp Suite](https://www.g2.com/products/burp-suite/reviews) — 4.8/5 stars (129 reviews) - [Acunetix by Invicti](https://www.g2.com/products/acunetix-by-invicti/reviews) — 4.1/5 stars (105 reviews) - [Pentest-Tools.com](https://www.g2.com/products/pentest-tools-com/reviews) — 4.8/5 stars (100 reviews) - [Veracode Application Security Platform](https://www.g2.com/products/veracode-application-security-platform/reviews) — 3.8/5 stars (25 reviews) - [Orca Security](https://www.g2.com/products/orca-security/reviews) — 4.6/5 stars (254 reviews) - [APPCHECK](https://www.g2.com/products/appcheck/reviews) — 4.6/5 stars (67 reviews) --- ## Top Discussions ### Microsoft Defender for Endpoint - Title: [What is Endpoint Defender?](https://www.g2.com/discussions/what-is-endpoint-defender) — 1 comment > **Top comment:** "In general terms, "Endpoint Defender" could potentially refer to a category of cybersecurity solutions designed to protect individual devices (endpoints)..." - Title: [Which feature in Microsoft Defender for endpoint?](https://www.g2.com/discussions/which-feature-in-microsoft-defender-for-endpoint) — 1 comment > **Top comment:** "Comprehensive protection: Microsoft Defender for Endpoint provides protection against a wide range of threats, including viruses, malware, ransomware, and..." - Title: [when scheduled scan starts it consume 100% CPU, can you kindly provide solution for it.](https://www.g2.com/discussions/37198-when-scheduled-scan-starts-it-consume-100-cpu-can-you-kindly-provide-solution-for-it) — 1 comment, 1 upvote > **Top comment:** "Method I: Ensure that no other Adware, Antimalware or Antivirus software is installed or not fully removed Method II: Prevent Windows Defender from scanning..." - Title: [can i use this for my video games?](https://www.g2.com/discussions/32645-can-i-use-this-for-my-video-games) — 1 comment, 1 upvote > **Top comment:** "if you are using Xbox, then all software's are certified by Microsoft, so no need the virus scan " ### Tenable Security Center - Title: [What is Tenable.sc used for?](https://www.g2.com/discussions/tenable-security-center-what-is-tenable-sc-used-for) — 1 comment > **Top comment:** "Tenable products look for vulnerabilities in systems and devices. This way you can fix those before the bad gues get in. Think of it this way. Remember..." - Title: [What is the best way to break up scans so they don't use licenses up and so scans don't end up getting blocked?](https://www.g2.com/discussions/32520-what-is-the-best-way-to-break-up-scans-so-they-don-t-use-licenses-up-and-so-scans-don-t-end-up-getting-blocked) — 1 comment, 1 upvote > **Top comment:** "I would recommend to break in to groups based on your organization and run host discovery first and run asset based scanning to avoid this situation...." ### Tenable Nessus - Title: [Is there a free version of Nessus?](https://www.g2.com/discussions/is-there-a-free-version-of-nessus) — 2 comments > **Top comment:** "30 /15 days trail is available " - Title: [What does Nessus Professional scan for?](https://www.g2.com/discussions/about-nessus-2b3f6c8f-4cde-460a-bd61-f2527f0cdb45) — 2 comments, 1 upvote > **Top comment:** "It scans the system for different vulnerabilities depending on what policy you want to scan the system with (like Internal PCI, Policy Compliance, SCAP,..." - Title: [What types of devices can Nessus Professional scan?](https://www.g2.com/discussions/device-types-78d9c056-eb92-4435-aad4-32afa6a1a445) — 2 comments, 1 upvote > **Top comment:** "Windows PCs/servers , Linux systems/servers, Mobiles, IPMI devices like iLO, iDRAC, network switches, storage arrays, etc." - Title: [How many IP Addresses can I scan?](https://www.g2.com/discussions/ip-addresses-b6ef755d-8e1e-4949-818a-ec228e8ac779) — 2 comments, 1 upvote > **Top comment:** "It depends on your license." - Title: [What do I need to run Nessus professional?](https://www.g2.com/discussions/environment-c71784d4-2685-42a7-870f-56620a4bcb97) — 2 comments, 1 upvote > **Top comment:** "you don't need any special requirements you can run on any windows or Linux machine without any hazel." --- **Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/microsoft-defender-for-endpoint-vs-tenable-security-center-vs-tenable-nessus)