watchTowr vs Tenable ASM: attack surface management compared

watchTowr

• Owner or subsidiary attributedDocumented
• Exploitability provenDocumented
• Ticket or workflow createdDocumented
• Compensating control appliedDocumented
• Fix retestedPartial

Tenable ASM

• Owner or subsidiary attributedNot documented
• Exploitability provenNot documented
• Ticket or workflow createdPartial
• Compensating control appliedPartial
• Fix retestedNot documented

watchTowr wins on

• Discovery of unknown assets and subsidiaries: 8 vs 7

  Reconstructs the external estate from a domain name, including unknown SaaS, subsidiaries and forgotten infrastructure.

• Attribution accuracy and false-positive handling: 7 vs 6

  Maps discovered assets to subsidiaries, brands and M&A; the attribution evidence is described in less detail than at CyCognito or IONIX.

• Exploitability validation: 9 vs 5

  Automated red teaming with eight agents: infrastructure, web application, known exploited vulnerabilities, credential stuffing, cloud, sensitive data, third party and supply chain, and DNS.

• Remediation and mitigation support: 9 vs 6

  Active Defense deploys mitigation rules to the network edge through WAF and firewall vendors including Cloudflare, Akamai, Imperva, F5, Fortinet, Check Point and Citrix.

• Time to value: 8 vs 6

  "Zero install", starting from a domain name.

Tenable ASM wins on

• Integrations and platform reach: 9 vs 7

  Feeds Tenable One alongside vulnerability, cloud, OT and identity exposure data, with Tenable One Connectors for third-party sources.

• Pricing transparency: 3 vs 2

  ASM is quote-only, although Tenable publishes prices for adjacent products such as Tenable One Vulnerability Management.

Choose watchTowr if

• You want proof that an exposure is exploitable before it reaches a ticket. watchTowr scores 9 on exploitability validation: Automated red teaming with eight agents: infrastructure, web application, known exploited vulnerabilities, credential stuffing, cloud, sensitive data, third party and supply chain, and DNS.
• You want help closing exposures, not only a longer list of them. watchTowr scores 9 on remediation: Active Defense deploys mitigation rules to the network edge through WAF and firewall vendors including Cloudflare, Akamai, Imperva, F5, Fortinet, Check Point and Citrix.

Choose Tenable ASM if

• The tool has to fit a wider security platform or many existing tools. Tenable ASM scores 9 on integrations: Feeds Tenable One alongside vulnerability, cloud, OT and identity exposure data, with Tenable One Connectors for third-party sources.
• Finding unknown assets, subsidiaries and acquired infrastructure is your main gap. Tenable ASM scores 7 on discovery: Draws on an attack surface map of more than 5 billion assets to identify domains related to the buyer's inventory.