Tenable Attack Surface Management

Name: Tenable Attack Surface Management
Brand: Tenable
Rating: 3.5 (3 reviews)

Leader

Welcome to Tenable. Your exposure ends here. Cloud Exposure | Vulnerability Exposure | OT Exposure | Identity Exposure

Est 2002|Valuation $4.5B|Raised $926.4M

LinkedIn 200K|Website|Web traffic 1.0M|FTEs 1,995|HQ Columbia, Maryland, US

MarketsVulnerability Management Cloud-Native Application Protection Platform (CNAPP)Web Application & API Protection (WAAP)Security Service Edge (SSE)Security Information and Event Management (SIEM)

Tenable Attack Surface Management screenshot

01Competitive Landscape

Narrative analysis

Tenable ASM vs Microsoft Defender EASM - Microsoft’s model is Azure-resource based with a defined concept of billable assets and a trial period, which some procurement teams prefer for transparency and centralized billing. - Tenable ASM is oriented toward integration with Tenable’s existing platform (Tenable One / VM / Security Center) and uses quote-based pricing, which can make upfront cost estimation at scale less transparent. Tenable ASM vs Cortex Xpanse - Xpanse is often positioned for enterprise customers and may carry higher price points in public-sector listings, though pricing varies by contract. - Tenable’s differentiation is integration with Tenable VM and exposure management workflows; Palo Alto’s differentiation is platform alignment with Cortex operations. Tenable ASM vs CyCognito - CyCognito uses a quote-based pricing model similar to Tenable ASM and emphasizes a combination of ASM, automated testing, and exploit intelligence. - CyCognito publishes commissioned materials (e.g., vendor-commissioned TEI reports) that should be scrutinized for methodology and assumptions.

Market adoption signals

Tenable’s shift toward Exposure Management (Tenable One) is documented in industry press coverage, indicating a strategic focus on combining external discovery with internal vulnerability workflows.

Coverage appears across security trade press and industry outlets reporting on product and strategy shifts.

	Tenable Attack Surface Management	Microsoft Defender EASM	Palo Alto Cortex Xpanse
Starting Price	Not publicly listed (quote-based, asset-count licensing)	Public pricing page exists; charged based on billable assets after a trial period (Azure consumption billing model)	Not publicly disclosed; public-sector procurement listings suggest higher price points (context-specific)
Best For	Organizations already standardized on Tenable VM/Tenable One that want EASM connected to vulnerability workflows	Microsoft/Azure-centric organizations seeking Azure-billed EASM with defined billable assets	Large enterprises invested in Palo Alto/Cortex ecosystem with substantial EASM budgets
Key Strength	Integration with Tenable exposure and vulnerability workflows; progressive asset licensing; documented release cadence	Defined billing construct (billable assets) and Azure-native procurement options	Platform integration with Cortex suite and enterprise positioning
Key Weakness	Pricing opacity; limited volume of public ASM-specific reviews; integration/deployment can require engineering effort	Costs may grow with approved inventory; requires Azure resource management discipline	Potentially high cost; pricing opacity; manual tuning may be required

01Competitive Landscape

Narrative analysis

Tenable ASM vs Microsoft Defender EASM

Microsoft’s model is Azure-resource based with a defined concept of billable assets and a trial period, which some procurement teams prefer for transparency and centralized billing.
Tenable ASM is oriented toward integration with Tenable’s existing platform (Tenable One / VM / Security Center) and uses quote-based pricing, which can make upfront cost estimation at scale less transparent.

Tenable ASM vs Cortex Xpanse

Xpanse is often positioned for enterprise customers and may carry higher price points in public-sector listings, though pricing varies by contract.
Tenable’s differentiation is integration with Tenable VM and exposure management workflows; Palo Alto’s differentiation is platform alignment with Cortex operations.

Tenable ASM vs CyCognito

CyCognito uses a quote-based pricing model similar to Tenable ASM and emphasizes a combination of ASM, automated testing, and exploit intelligence.
CyCognito publishes commissioned materials (e.g., vendor-commissioned TEI reports) that should be scrutinized for methodology and assumptions.

Market adoption signals

Coverage appears across security trade press and industry outlets reporting on product and strategy shifts.

	Tenable Attack Surface Management	Microsoft Defender EASM	Palo Alto Cortex Xpanse
Starting Price	Not publicly listed (quote-based, asset-count licensing)	Public pricing page exists; charged based on billable assets after a trial period (Azure consumption billing model)	Not publicly disclosed; public-sector procurement listings suggest higher price points (context-specific)
Best For	Organizations already standardized on Tenable VM/Tenable One that want EASM connected to vulnerability workflows	Microsoft/Azure-centric organizations seeking Azure-billed EASM with defined billable assets	Large enterprises invested in Palo Alto/Cortex ecosystem with substantial EASM budgets
Key Strength	Integration with Tenable exposure and vulnerability workflows; progressive asset licensing; documented release cadence	Defined billing construct (billable assets) and Azure-native procurement options	Platform integration with Cortex suite and enterprise positioning
Key Weakness	Pricing opacity; limited volume of public ASM-specific reviews; integration/deployment can require engineering effort	Costs may grow with approved inventory; requires Azure resource management discipline	Potentially high cost; pricing opacity; manual tuning may be required