External Attack Surface Management
Take control of your internet-facing perimeter
Our managed EASM service continuously discovers and assesses everything you expose online, with experts validating each finding against your risk appetite.
Book a guided demo How it works
- CREST & CHECK accredited testers
- UK-based account team
- Live results platform
- No-obligation scoping call
Overview
What is external attack surface management?
External attack surface management, or EASM, is the practice of identifying, analysing and securing every digital asset your organisation exposes to the internet. That means your websites and web applications, APIs, cloud services, online platforms and connected devices.
Keeping track of them is harder than ever. Remote working, shadow IT, siloed teams launching services without security input, and attackers using generative AI to move faster all mean your perimeter is constantly shifting. Anything you do not know about is something you cannot protect.
Our managed EASM service is delivered in partnership with Rootshell Security, a CREST and CHECK accredited provider. It combines continuous discovery with risk and vulnerability management, so you always know what is exposed and what to do about it.
What's included
A complete, managed EASM service
We pair continuous technology-led discovery with human validation, so the picture you see is accurate and actionable.
Inventory and discovery
We continuously find internet-facing assets, including forgotten systems and newly deployed services that bypassed formal processes.
Attack surface mapping
Your asset inventory includes software components, exposed ports and vulnerability data, giving a detailed map of your perimeter.
Vulnerability and risk assessment
Misconfigurations and software vulnerabilities are identified across your whole external estate and assessed for business risk.
Expert validation
Specialists confirm assets and findings, cut out false positives and set risk ratings that reflect your appetite for risk.
Continuous monitoring
Your external footprint is watched on an ongoing basis, so changes and new exposures are caught early.
Third-party and acquisition coverage
Bring the external assets of suppliers and newly acquired businesses under the same risk management as your own.
How it works
How we manage your external attack surface
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Discover
We build and maintain an inventory of your internet-facing assets, surfacing anything unknown or forgotten.
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Map and assess
Each asset is mapped and checked for vulnerabilities and misconfigurations, then assessed for risk.
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Validate
Our specialists confirm what we find, remove false positives and rate each issue according to your risk appetite.
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Reduce risk
You receive prioritised findings and guidance to close exposures, backed by vulnerability scanning and penetration testing where needed.
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Monitor continuously
Ongoing monitoring keeps your inventory and risk picture current as your perimeter changes.
Benefits
What EASM does for your organisation
Uncover unknown risk
Finding hidden exposures early means remediation can begin before an attacker gets there.
Streamlined operations
The service integrates with your existing systems rather than adding yet another disconnected tool.
More from your security stack
Threat intelligence, vulnerability prioritisation and continuous monitoring help your existing investments work harder.
Lower cost of security
More effective vulnerability management helps reduce wasted effort and overall IT and security spend.
FAQ
Frequently asked questions
What is the difference between internal and external attack surface management?
External attack surface management covers public-facing assets such as websites, web applications, APIs, cloud services and IoT devices. Internal attack surface management looks at servers, databases, network infrastructure, software and firewalls inside your perimeter. Used together they give complete coverage.
Why is my external attack surface so hard to track?
Data and services are spread across many platforms, teams sometimes launch applications without involving security, and the perimeter changes constantly. Regulations such as the EU's DORA are also raising expectations around visibility and control.
What are typical use cases for EASM?
Common examples include continuously discovering forgotten or newly deployed internet-facing assets, regularly assessing platforms for vulnerabilities, bringing an acquired company's external assets under group risk management, and monitoring portals for unauthorised access to support regulatory compliance.
How does EASM fit with penetration testing and scanning?
EASM provides the continuous discovery and monitoring layer, while managed vulnerability scanning and penetration testing dig deeper into the assets it finds. Our service is designed to complement both.
Explore more
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Find out what you are really exposing
Book a guided demo and see how continuous discovery and expert validation can bring your perimeter back under control.
