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External Attack Surface Management (EASM)

External Attack Surface Management (EASM) is the ongoing process of discovering, mapping, and reducing the internet-facing assets your organization has exposed to potential attackers. APT Security Management, based in North Charleston, SC, delivers EASM to businesses across the United States using a prepaid token-based model with no long-term contracts required. If you don't have a clear picture of what attackers can see from the outside, EASM gives you that picture before someone else finds it first.

Who Needs External Attack Surface Management]

Most organizations have more exposed on the internet than they realize. Forgotten subdomains, old cloud environments, unpatched web applications, and misconfigured services all show up from the outside, even when your internal team doesn't know they're there. EASM is the service that finds those gaps before attackers do.


You're a good candidate for EASM if your organization has grown quickly, acquired other companies, moved services to the cloud, or relies on a mix of vendors and third-party tools. Each of those situations creates new internet-facing assets that may not be tracked internally.


Businesses pursuing compliance with frameworks like SOC 2, PCI-DSS, ISO 27001, or NIST CSF often need EASM to satisfy asset inventory and risk management requirements. If an auditor asks what you have exposed on the internet, EASM gives you a defensible, documented answer.

What You Get

All EASM engagements are priced in tokens. Contact us for a token quote based on your environment size and scope.

A full inventory of your internet-facing assets, including domains, subdomains, IP ranges, cloud services, and web applications

Risk-ranked findings organized by severity (Critical, High, Medium, Low) so your team knows what to address first

Identification of exposed services that shouldn't be public, such as admin panels, development environments, and unprotected APIs

Detection of shadow IT and forgotten assets your internal records may not include

A clear remediation plan for each finding, written in plain language for both technical and non-technical stakeholders

A retest after remediation to confirm findings have been resolved

Ongoing monitoring options for clients who want continuous visibility as their environment changes

How It Works

Why APT

APT's team includes practitioners with OSCP, CISSP, and GPEN certifications who conduct EASM using the same reconnaissance methods an attacker would use. You get a realistic picture of your exposure, not just a list of what automated tools flagged.


Because APT uses token-based pricing, you're not locked into a 12-month contract. You buy the tokens you need, use them for EASM (or any other APT service), and come back when your environment changes or compliance requires a refresh.


APT operates on a vendor-neutral basis. The findings and recommendations you receive reflect your actual risk, not a pitch for a specific product. There are no commissions driving the advice you get.


Every engagement is supported by a written Statement of Work and rules of engagement. Nothing happens outside the defined scope, and authorization is documented before any activity begins.

Choose Your Engagement Model

Every APT service is delivered through one of three engagement models:

    ravenWing

    Email-based updates and scheduled reporting. Ideal for small businesses that want security oversight without managing a portal.

    ravenGuard

    Client portal access, role-specific reports for technical and non-technical staff, and scheduled status meetings. Ideal for growing teams that want active visibility into their security posture.

    ravenSentinel

    Custom dashboards, strategy sessions, and direct coordination with your IT team. Ideal for enterprises that need ongoing EASM integrated into their security program.

    Not sure which fits? Talk to a strategist.

    Frequently Asked Questions

    What is External Attack Surface Management and how does it work?

    EASM is the process of discovering and monitoring all the internet-facing assets associated with your organization, then identifying which ones pose a security risk. APT's team conducts external reconnaissance using attacker techniques to map your domains, subdomains, cloud services, IPs, and web applications. Findings are prioritized by severity and paired with clear remediation guidance.

    How is EASM priced and what does it cost in tokens?

    EASM engagements are priced using APT's prepaid token system. The token cost depends on the size of your environment, the number of assets in scope, and whether you want a one-time assessment or ongoing monitoring. Contact us for a token quote specific to your organization.

    How long does an EASM engagement take?

    A single EASM assessment typically takes one to three weeks from kickoff to final report delivery, depending on the size and complexity of your environment. Ongoing monitoring engagements run continuously and deliver updated findings on a scheduled basis.

    What is the difference between EASM and a penetration test?

    A penetration test (as offered through APT's Penetration Testing as a Service) goes deeper into specific targets to actively exploit vulnerabilities and demonstrate real-world impact. EASM focuses on discovering and inventorying all of your internet-facing assets and identifying exposed or misconfigured services. EASM tells you what's out there; a penetration test tells you what an attacker can do with it. Many clients use EASM to prepare for a more targeted pen test.

    What do I receive at the end of the engagement?

    You receive a full asset inventory, a prioritized findings report with severity ratings (Critical, High, Medium, Low), remediation guidance for each finding, and a written summary suitable for sharing with leadership or auditors. Retest results are documented separately after remediation.

    Do you offer retesting or ongoing monitoring?

    Yes. APT includes in the token estimate a retest after remediation to confirm that critical and high-severity findings have been resolved. For clients who want continuous visibility, ongoing monitoring can be configured through any of APT's engagement tiers.

    What types of businesses does APT work with for EASM?

    APT works with businesses of all sizes across the United States, from small businesses with limited IT staff to enterprises with complex, multi-cloud environments. EASM is particularly useful for organizations that have grown quickly, completed acquisitions, or are working toward compliance with frameworks like SOC 2, PCI-DSS, or NIST CSF.

    ​Ready to Get Started?

    Book a free 30-minute consultation. We'll review your environment, answer your questions, and give you a clear token estimate with no obligation.

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