External Security Assessment
Assessment of everything an attacker can reach from the internet — external attack surface discovery, public-facing applications, APIs, DNS and security configuration, cloud exposure and authentication interfaces.
Why this assessment matters
The internet-facing surface is the front door attackers probe first. Unmanaged assets, exposed services, weak authentication interfaces and cloud misconfigurations are common entry points — and they are exactly what automated scanning alone misses.
What We Test
Typical coverage for this assessment, tailored to your system during scoping.
- External attack surface discovery
- Public-facing applications
- APIs
- DNS / security configuration
- Cloud exposure
- Authentication interfaces
- Security headers
- Exposed services
- Risk prioritization
How the Assessment Runs
A consistent six-stage process — every stage produces something you can use.
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Discover
Enumerate domains, subdomains, IPs, certificates and internet-facing services.
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Assess
Test public applications, APIs, authentication interfaces and cloud exposure.
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Validate
Confirm exploitability with controlled proof-of-concept requests.
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Report
Prioritize findings by exploitability and business impact.
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Remediate
Support fixes and exposure reduction.
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Retest
Verify remediated items and re-confirm the reduced surface.
Typical Findings
Realistic issue classes commonly discovered during this type of assessment. Your results depend on your system — we do not imply guaranteed findings.
- Unknown or forgotten internet-facing assets
- Exposed services and administrative interfaces
- Weak authentication on public interfaces
- Cloud storage or services with excessive exposure
- Missing security headers and TLS misconfiguration
- DNS and email security configuration gaps
- Public applications with exploitable weaknesses
Deliverables
Everything needed to understand, prioritize and fix what we find.
- External asset inventory
- Findings with evidence and reproduction
- Risk-prioritized remediation guidance
- Retest verification
Where External Security Fits in Your Attack Surface
The shared, data-driven attack-surface map — External Security is emphasised automatically. Select any node to see its assessment path, related systems and security objective.
Interactive 3D map of the security attack surface — Web, API, Mobile, Thick Client, Cloud, Internal, External, AI and Blockchain. Select a node to explore a service.
- Discover
- Map
- Assess
- Validate
- Correlate
- Risk
- Evidence
- Remediate
- Retest
- Assessment / attack path
- Application / API
- Identity / security core
- Defensive
- Critical risk
Who Needs This
Organizations that want to know what attackers see from the internet
Teams managing many domains, subdomains or cloud accounts
Companies preparing for customer or compliance security reviews
Any business with internet-facing applications or APIs
Frequently Asked Questions
How do you discover the attack surface?
We combine passive sources — DNS, certificates, historical data — with controlled active discovery of the authorized scope, then validate what is genuinely reachable.
Is this the same as a web application test?
It is broader. An external assessment covers the full internet-facing estate — including assets you may have forgotten — while a web application security assessment focuses deeply on a specific application.
Do you test everything you find?
We prioritize. Everything in scope is assessed, but depth follows risk: the assets that matter most to your business get the deepest testing.
Ready to test your application?
Start a scoping conversation about external security for your systems.