HEAD-TO-HEAD · FACTS ONLY
Hadrian vs Tenable ASM: exposure management facts side by side
SHORT ANSWER
Hadrian describes 4 of the five tool types on the pages we read and Tenable ASM describes 4 and their tool-type coverage matches. On proof, Hadrian describes attack-style testing and Tenable ASM describes exploitability checks but not attack-style testing. We do not score either; the right choice depends on your estate, current platform, WAFs and capacity to fix.
By The Exposure Desk · Exposure Management Finder · Published 2026-10-11
Desk research from public vendor pages read in September 2026, updated 2026-10-11. Profiles follow our published method; we did not run the products.
How do their shapes compare?
- Hadrian
- Tenable Attack Surface Management
- Outer point: described on the vendor's pages we read
- Inner point: not in our sources (it may exist; we did not find it)
What are the facts, side by side?
| Fact | Hadrian | Tenable Attack Surface Management |
|---|---|---|
| Positioning | An agentic AI platform for attack surface management and penetration testing, with continuous external exposure management (ATLAS) and priced agentic penetration tests (NOVA). | Tenable's attack surface management, part of the Tenable One exposure management platform, drawing on an attack surface map of more than 5 billion assets. |
| Deployment | Scans run hourly or when an event triggers them. Source: Hadrian technology · Read 27 Sep 2026 | Part of Tenable One; sold through a demo request. Source: Tenable Attack Surface Management · Read 27 Sep 2026 |
| EASM discovery | Described Continuous discovery with hourly or event-triggered scans; machine learning confirms asset ownership. Source: Hadrian technology · Read 27 Sep 2026 | Described Identifies domains related to your inventory from a map of 5 billion+ assets, with 200+ metadata fields. Source: Tenable Attack Surface Management · Read 27 Sep 2026 |
| Exposure validation | Described Agentic AI that, by Hadrian's account, proves exploitability within 15 minutes. Source: Hadrian technology · Read 27 Sep 2026 | Described Tenable One adds attack path analysis across 150+ techniques; exploit testing is not described for the ASM product. Source: Tenable One · Read 27 Sep 2026 |
| Exposure management platforms | Described ATLAS is priced as continuous external exposure management; internal assets are not described. Source: Hadrian pricing · Read 27 Sep 2026 | Described Feeds Tenable One, which Tenable calls its exposure management platform, with Tenable One Connectors for third-party data. Source: Tenable One · Read 27 Sep 2026 |
| CTEM programme support | Described Discovery, prioritisation, exploit validation, remediation guidance, automatic tickets and automatic regression testing. Source: Hadrian technology · Read 27 Sep 2026 | Described Tenable One covers discovery, attack paths and Hexa AI automated remediation workflows; exploit validation is not described. Source: Tenable One · Read 27 Sep 2026 |
| WAF posture | Not in our sources | Not in our sources |
| Subsidiary and owner attributionDiffers | Partly Hadrian lists a mergers and acquisitions assessment add-on for Atlas; ownership is confirmed by machine learning. Source: Hadrian pricing (re-read) · Read 13 Oct 2026 | Not in our sources |
| Internal as well as external assetsDiffers | Not in our sources | Matches Tenable One includes vulnerability management alongside external attack surface data. Source: Tenable: buy · Read 27 Sep 2026 |
| Cloud connections named | Not in our sources | Not in our sources |
| Exploitability checkedDiffers | Matches Proves exploitability with agentic testing. Source: Hadrian technology · Read 27 Sep 2026 | Partly Attack path analysis across 150+ techniques in Tenable One, not exploit testing. Source: Tenable One · Read 27 Sep 2026 |
| Attack-style testingDiffers | Matches Agentic AI simulates attacks to prove impact. Source: Hadrian technology · Read 27 Sep 2026 | Not in our sources |
| Works through your WAF or edge | Not in our sources | Not in our sources |
| WAF coverage across several vendors | Not in our sources | Not in our sources |
| Retests after a fixDiffers | Matches Automatic regression testing after fixes. Source: Hadrian technology · Read 27 Sep 2026 | Not in our sources |
| Routes findings to owners and ticketsDiffers | Matches Automatic ticket creation, with Jira, ServiceNow, GLPI, Slack, Microsoft Teams, SentinelOne, Datadog and Zendesk. Source: Hadrian integrations · Read 27 Sep 2026 | Partly Tenable One Advanced lists orchestrated remediation through manual or automated ticketing workflows. Source: Tenable One pricing · Read 11 Oct 2026 |
| Applies a compensating controlDiffers | Not in our sources | Partly Hexa AI orchestrates automated remediation in Tenable One. Source: Tenable One · Read 27 Sep 2026 |
| Price or pricing basis publishedDiffers | Matches NOVA agentic penetration tests cost from 1,250 euros per test excluding VAT, bundles available. Source: Hadrian pricing (re-read) · Read 13 Oct 2026 | Not in our sources |
| Trial or self-serve start | Not in our sources | Not in our sources |
| Platform it extends | None | External findings feed Tenable One next to Tenable vulnerability data. Source: Tenable One · Read 27 Sep 2026 |
| Integrations | Jira, ServiceNow, GLPI, Slack, Microsoft Teams, SentinelOne, Datadog, Zendesk and HubSpot, plus an API. Source: Hadrian integrations · Read 27 Sep 2026 | Tenable One Connectors bring third-party data into the platform. Source: Tenable One · Read 27 Sep 2026 |
| Price | NOVA agentic penetration test: from 1,250 euros per test excluding VAT, bundles available. ATLAS on AWS Marketplace, 12-month contract: up to 250 assets (domains, IP addresses and certificates) $50,000. Source: AWS Marketplace: Atlas External Attack Surface Management · Read 11 Oct 2026 | Not published. Tenable One is sold in two packages, Foundation and Advanced, both by quote; ASM is not sold online. Tenable publishes some adjacent prices, for example Tenable One Vulnerability Management at $3,700 for one year for up to 250 assets. Source: Tenable One pricing · Read 11 Oct 2026 |
Where do they differ?
- Subsidiary and owner attribution: Hadrian partly matches; Tenable ASM is not in our sources.
- Internal as well as external assets: Hadrian is not in our sources; Tenable ASM matches.
- Exploitability checked: Hadrian matches; Tenable ASM partly matches.
- Attack-style testing: Hadrian matches; Tenable ASM is not in our sources.
- Retests after a fix: Hadrian matches; Tenable ASM is not in our sources.
- Routes findings to owners and tickets: Hadrian matches; Tenable ASM partly matches.
- Applies a compensating control: Hadrian is not in our sources; Tenable ASM partly matches.
- Price or pricing basis published: Hadrian matches; Tenable ASM is not in our sources.
Choose Hadrian if
- You want attack-style proof and a price you can see before a call
- You need fixes retested automatically
Choose Tenable ASM if
- You already run Tenable vulnerability management
- You want external findings in the same platform as internal vulnerabilities
Which limits should you check?
Hadrian
- Hadrian lists a mergers and acquisitions assessment add-on for Atlas; ownership is confirmed by machine learning.
- No WAF or edge mitigation is described.
Tenable ASM
- ASM is quote-only, with no trial listed.
- Exploit testing is not described, and remediation depends on buying into Tenable One.
Questions readers ask
Is Hadrian or Tenable ASM better?
Neither is scored on this site. Hadrian describes 4 of five tool types and Tenable ASM 4 on the pages we read, and they differ on 8 recorded facts. Which fits depends on your estate, current platform, need for proof, WAFs and capacity to fix; the finder checks those.
Which of the two proves exploitability?
Hadrian: exploitability checked: Matches; attack-style testing: Matches. Tenable ASM: exploitability checked: Partly; attack-style testing: Not in our sources.
Do Hadrian or Tenable ASM publish prices?
Hadrian: NOVA agentic penetration test: from 1,250 euros per test excluding VAT, bundles available. ATLAS on AWS Marketplace, 12-month contract: up to 250 assets (domains, IP addresses and certificates) $50,000. Tenable ASM: Not published. Tenable One is sold in two packages, Foundation and Advanced, both by quote; ASM is not sold online. Tenable publishes some adjacent prices, for example Tenable One Vulnerability Management at $3,700 for one year for up to 250 assets.