Publicly reachable assets
Confirm public IPs, domains, hosts, ports, certificates, remote-access services, and externally visible technology.
External attack-surface review cost estimate
External Security Audit Pricing
Estimate the cost to review the internet-facing systems attackers can see, including public IPs, remote access, DNS, TLS, email domains, web applications, and exposed services.
- Public attack-surface inventory
- Remote access, DNS, and TLS review
- Risk-ranked exposure findings
Illustrative market-value comparison$3,600+
Focused OC Security Audit starting price
$1,195one-time starting estimate
The crossed-out figure is an illustrative planning comparison, not a third-party market survey. Final scope and fees are confirmed in writing.
Ali Hassani, CISO, brings 25+ years of IT, cybersecurity, compliance, network, Microsoft, and infrastructure experience to each engagement.
Instant service pricing estimate
Estimate the cost of reviewing your external attack surface.
Choose the closest answer for ten simple scope questions. The estimate updates in your browser and does not collect or transmit your selections.
Professional audit deliverables
Know what is exposed, why it matters, and what to fix first.
The engagement turns technical and documentation review into clear priorities for leadership, IT, vendors, and follow-up validation.
Deliverables included with your assessment
- External attack-surface inventory with observed public assets and ownership notes.
- Risk-rated findings for exposed services, remote access, DNS, TLS, and email controls.
- Executive explanation of likely business impact and the most urgent priorities.
- Technical remediation guidance with safe validation and retest steps.
- Evidence list for asset ownership, exception decisions, and recurring review.
- Optional follow-up check of agreed internet-facing remediation items.
What the service reviews
Validate the internet-facing systems attackers can discover.
Domain and trust signals
Review DNS records, email authentication, certificate hygiene, forgotten subdomains, vendor-hosted services, and ownership gaps.
Validation and prioritization
Separate high-risk exposure from informational results, document evidence, and define safe remediation and retest priorities.
For scope context, review OC Security Audit’s External Security Audit service and the authoritative CISA Cyber Hygiene Services. A related free readiness tool can help identify questions before a professional engagement.
Experienced, independent guidance
Reviewed by Ali Hassani, CISO.
Ali evaluates external exposure in the context of real network architecture, ownership, and business operations rather than treating every open service the same.
Ali Hassani is a CISO, cybersecurity and IT consultant, and infrastructure leader with 25+ years of experience. Certifications include CISSP, CCISO, CCNP, CCNA, MCSE, MCSA Security, MCITP, MCP, and MCTS. Learn more about Ali Hassani.
Pricing questions
What clients usually ask before scheduling.
Is an external security audit the same as a penetration test?
No. This service reviews and validates external exposure without assuming exploitation. A penetration test is a separately authorized engagement with different rules of engagement and objectives.
What determines the external audit price?
Public IPs, domains, internet-facing hosts, remote-access gateways, cloud services, web applications, third-party portals, and the requested retest depth determine effort.
Can the review include an urgent exposed service?
Yes. A focused priority review can be scoped, but the estimator only provides planning guidance. Call OC Security Audit to confirm timing, authorization, and the exact systems in scope.
Confirm the right scope before you commit.
Call for a confidential conversation or send the basic environment details you already have. OC Security Audit will confirm objectives, exclusions, access, timing, deliverables, and a written fee.
This estimator is for initial guidance only and does not replace a professional cybersecurity audit, compliance assessment, penetration test, legal/compliance review, or written proposal. Do not enter confidential information.