Qualys External Attack Surface Management

Qualys External Attack Surface Management is a managed service for finding and monitoring internet-facing assets. It best suits organizations that want to connect external asset visibility to Qualys vulnerability and compliance workflows. Its continuous discovery is useful, though access to leased-netblock discovery takes an extra step and the no-cost offer lasts only 30 days.

Overview

EASM discovers domains, subdomains, cloud workloads, web applications, APIs, certificates and publicly exposed services, then attributes them to an organization and maps their relationships. That combination is valuable when the challenge is not just finding exposed infrastructure but separating owned assets from the wider internet. It can also surface unapproved cloud services, test environments, abandoned assets and other unmanaged resources.

Continuous change detection flags newly exposed assets and changes to existing internet-facing services. Qualys TruRisk scores prioritize assets using vulnerabilities, misconfigurations, asset criticality and external exposure, giving teams a way to direct attention across a broad inventory. Discovered assets can be added to inventory and scanned with VMDR for vulnerabilities, exposed services, certificates and configuration weaknesses.

Key features

Discovery and change monitoring: Continuous coverage spans external assets, including cloud workloads, APIs and certificates. This suits teams that need ongoing visibility rather than periodic asset lists.

Ownership mapping and prioritization: Attribution and relationship mapping help identify which assets belong to the organization; TruRisk scoring adds risk context. These capabilities can make findings more actionable, but they still depend on teams following through on prioritized issues.

Qualys workflow connections: Native integrations include VMDR, Certificate View, Policy Compliance and Web Application Scanning. CSAM with EASM can produce asset security health reports for PCI-DSS and FedRAMP, and provides enriched, bidirectional ServiceNow CMDB integration for a continuously updated asset view.

Leased-netblock discovery: Shodan data is used to enumerate exposed assets on leased IPv4 netblocks. A Qualys Technical Account Manager must enable this, so organizations needing that coverage should account for the additional coordination.

Security and extensibility: CSAM documents end-to-end encryption, strong access controls and SAML 2.0 enterprise SSO. Extensible XML-based APIs connect with GRC, ticketing, SIEM, ERM and IDS systems.

Pricing

The pricing model is freemium, but there is no ongoing free plan. The Qualys CyberSecurity Asset Management 3.0 with External Attack Surface Managemen plan costs free, billed every 30 days, and provides CSAM with EASM at no cost for 30 days. Treat it as a trial window, not a durable option for teams that need continuous coverage without a paid contract.

After the trial, pricing is on request. Custom pricing may suit organizations evaluating a broader Qualys deployment, but buyers should establish the post-trial cost before depending on the service in an ongoing security workflow.

Platforms

The service is accessed through a browser and is fully managed from public or private cloud; it requires no servers or software installation. The stated platforms are API, Linux and web. Its hybrid deployment model and browser access suit teams that do not want to operate dedicated scanning infrastructure.

Who it's for

EASM is a strong fit for security teams responsible for external exposure across changing infrastructure, particularly organizations already using Qualys tools such as VMDR, Policy Compliance or Web Application Scanning. The ServiceNow CMDB integration and PCI-DSS and FedRAMP reporting also suit teams that need asset visibility to feed operational and compliance processes.

It is less suitable for buyers seeking a permanent free tier, or for teams that require leased-netblock enumeration without an enablement step. Organizations without Qualys workflows may find less benefit in the product's native connections.

Pros and cons

Pro: Continuous discovery, ownership mapping and change detection cover more than a static inventory, including unmanaged and newly exposed resources.

Pro: TruRisk scores and VMDR scanning connect external discovery to vulnerability prioritization and follow-up.

Pro: ServiceNow CMDB integration and PCI-DSS and FedRAMP asset health reporting support operational and compliance workflows.

Con: The no-cost plan ends after 30 days, so it does not provide lasting free coverage.

Con: Shodan-based discovery of leased IPv4 netblocks requires contacting a Qualys Technical Account Manager.

Con: Pricing after the trial is custom, which gives buyers no fixed ongoing price to compare upfront.

Alternatives

For a free open-source container security option, Kubescape offers a CLI and Kubernetes operator for self-hosted use. Choose Deepfence ThreatMapper instead if a free tool with no limits or hidden features better matches the requirement. Trivy and Grype are free open-source vulnerability scanners, while Kyverno is a free open-source project.

Snyk Open Source is a freemium alternative with a free plan capped at five projects and access to Snyk Open Source (SCA). Docker Desktop has a free Personal plan for one user, one Docker Scout-enabled repository, 100 Docker Hub pulls per hour and one private Docker Hub repository. RapidFort offers a free tier with five curated near-zero-CVE images from a limited catalog, daily rebuilds and patching, and support for Alpine, Debian, UBI and Ubuntu LTS in standard container registries.

Readers comparing adjacent security categories can browse Container Security Software, Database Vulnerability Scanners, Container Image Scanning Tools, Dynamic Application Security Testing Software, Web Application Security Scanners and Security Configuration Management Software.

Verdict

Choose Qualys External Attack Surface Management if your organization needs continuous external asset discovery and wants ownership mapping, risk prioritization and follow-up scanning tied into Qualys workflows. Look elsewhere if you need a permanent free plan or a fixed price before engaging with a vendor, and confirm the Shodan enablement process if leased-netblock coverage matters.