Qualys External Attack Surface Management

Qualys External Attack Surface Management gives security teams an outside-in view of internet-facing infrastructure. It is best suited to organizations that need to connect asset discovery with Qualys security workflows. Its continuous monitoring and risk prioritization are compelling, but the 30-day no-cost offer is a trial rather than a lasting free tier.

Overview

EASM continuously discovers domains, subdomains, cloud workloads, web applications, APIs, certificates and exposed services, then attributes assets to an organization and maps their relationships. This makes it useful for teams trying to identify unmanaged cloud services, test environments, abandoned assets and other blind spots—not just catalog known infrastructure.

Change detection flags newly exposed assets and shifts in existing internet-facing services. Qualys TruRisk scores help teams prioritize findings by combining vulnerabilities, misconfigurations, asset criticality and external exposure. That context can make a large inventory more actionable, especially when teams can move discovered assets into inventory and scan them with VMDR for vulnerabilities, exposed services, certificates and configuration weaknesses.

Key features

• External discovery and attribution: Continuous coverage includes internet-connected assets and maps their ownership and relationships. Shodan data can extend enumeration to exposed assets on leased IPv4 netblocks, but enabling that discovery requires contacting a Qualys Technical Account Manager—a meaningful dependency for teams that need it.
• Risk and vulnerability workflows: TruRisk prioritization brings several exposure signals together, while VMDR scanning provides a route from discovery to vulnerability work. Native integrations with VMDR, Certificate View, Policy Compliance and Web Application Scanning are most valuable to organizations already using Qualys tools.
• Asset operations: CSAM with EASM can produce asset security health reports for PCI-DSS and FedRAMP, and CSAM provides enriched, bidirectional ServiceNow CMDB integration. These capabilities support ongoing inventory and compliance operations rather than discovery in isolation.
• Deployment and extension: The service is managed from a public or private cloud, accessed through a browser and requires no server or software installation. XML-based APIs and integrations with GRC, ticketing, SIEM, ERM and IDS systems give teams options for extending workflows. Qualys documents end-to-end encryption, strong access controls and SAML 2.0 enterprise SSO for CSAM.

Pricing

Qualys uses a freemium pricing model, but it does not offer an ongoing free plan. The named plan, Qualys CyberSecurity Asset Management 3.0 with External Attack Surface Management, costs nothing for 30 days; treat this as a time-limited trial, not a durable option for a small team. The trial includes CSAM with EASM, with no cost for 30 days. Ongoing pricing is custom pricing, so organizations should request a quote before committing.

The product is a better fit for organizations prepared to evaluate a broader security workflow than for buyers seeking a permanently free discovery tool. Confirm pricing and any deployment requirements directly with Qualys, and account for the Technical Account Manager step if leased-netblock discovery via Shodan matters to your coverage.

Platforms

Qualys EASM is accessed through a browser and supports web and API access, with Linux among its listed platforms. Its managed cloud deployment avoids installing servers or software, which suits teams that want centralized service access rather than a self-hosted EASM deployment.

Who it's for

Choose EASM if your organization needs continuous visibility into external assets, ownership attribution and a path from exposure discovery into Qualys inventory, VMDR scanning or compliance work. It is especially suited to teams already operating within the Qualys ecosystem or connecting asset records to ServiceNow. Look elsewhere if you need a standing free plan, or if your process cannot accommodate the Technical Account Manager requirement for Shodan-based leased-netblock discovery.

Pros and cons

Pros

• Broad outside-in discovery: Domains, cloud workloads, applications, APIs, certificates and exposed services are covered, helping teams find unmanaged and forgotten resources.
• Prioritization tied to exposure: TruRisk scores combine vulnerability, configuration, criticality and external exposure signals, giving teams a basis for triage.
• Connected security workflows: VMDR scanning and native Qualys integrations can turn discovery into vulnerability and compliance work.
• Managed access with no local installation: Browser access and public or private cloud management reduce deployment overhead.

Cons

• No ongoing free tier: The 30-day no-cost plan is useful for evaluation but does not support a continuing zero-cost deployment.
• Shodan discovery has an enablement dependency: Leased-netblock enumeration requires a Qualys Technical Account Manager, which may slow or complicate setup for teams that need it.
• Pricing is custom: Buyers cannot compare an ongoing listed price and should request a quote before budgeting.
• Strongest fit is within broader operations: VMDR, CSAM and compliance connections are most useful to organizations ready to incorporate EASM into a wider Qualys workflow.

Alternatives

runZero is worth considering if you want a continuing free option: its Community Edition includes 100 assets, one organization, 10 recurring tasks and 30 days of data retention. FullHunt may suit evaluation or internal use on a small budget, with a free plan limited to 10 credits per month; its Builder plan is 149.00 USD. Choose Tenable One Attack Surface Management if you prefer to request a demo or quote for a paid product without a free plan. CrowdStrike Falcon Surface is another paid option with a free trial and demo-based pricing, while Rapid7 Surface Command offers paid, quote-based access with asset discovery and unified inventory, internal and external visibility, and asset context and relationships.

For a different security focus, Bitdefender Total Security is a consumer multi-device suite priced at $59.99 a year for the first year, covering five devices and one account. Ivanti Neurons for Zero Trust Access uses named-user licensing with sales-contact pricing. ImmuniWeb is a freemium option whose ImmuniWeb Neuron Mobile scan subscription costs €395 a month per app, with unlimited scans of builds or versions of the same Android or iOS app.

Browse Attack Surface Management Software for more tools in this category, or compare adjacent areas including SaaS Security Posture Management Software, Dynamic Application Security Testing Software, Database Vulnerability Scanners, Certificate Management Software and Security Configuration Management Software.

Verdict

Qualys EASM is a strong choice for organizations that need continuous external asset discovery tied to ownership, risk prioritization and Qualys vulnerability or compliance workflows. Its clearest advantage is the route from exposure visibility into inventory and remediation-oriented scanning; its clearest drawback is the lack of an ongoing free tier, combined with custom pricing and a required account-manager step for Shodan leased-netblock coverage. Choose it when those integrated workflows justify the quote, and look elsewhere if you need an independently priced or permanently free service.