Security audits

Security audit cost: what changes the scope and quote?

Application security audit cost depends on the work required, not just the number of pages on a website. Workflows, roles, data boundaries, integrations, environments, and review depth all affect effort. A useful quote makes those assumptions visible and separates review, remediation, and retesting.

What matters first

  • Count trust boundaries and workflows, not just screens.
  • Compare identical deliverables and access assumptions.
  • Get scope and fees agreed before testing starts.

Why page count is a poor estimate

A three-screen application with billing, organization invitations, file processing, and administrator access can present more review work than a large public content site. Each role and state transition creates questions about who can do what, which data is exposed, and how a failure would affect the business.

Prepare a workflow inventory alongside your URL list. Include registration, recovery, exports, payment changes, webhooks, internal dashboards, and newly added AI tools. Note whether the system is single-tenant or multi-tenant, and which third parties own parts of the flow. This makes scoping conversations more productive.

References: [1] NIST, [2] OWASP

What changes assessment effort

Access and review depth matter. A source-assisted review, authenticated testing with several roles, and a deployment configuration review each involve different preparation and analysis. More time does not automatically guarantee broader coverage; the engagement should say which questions that time is intended to answer.

Evidence and delivery also affect the proposal. A report, engineering walkthrough, remediation tracker, retest window, and stakeholder summary are separate outputs. Clarify how urgent issues are reported during the work and how changes to the application during testing affect the schedule.

References: [1] NIST, [3] OWASP

How to compare quotes fairly

Use a shared brief so every provider sees the same assets, roles, environments, timelines, and external requirements. Ask each provider to list included activities and exclusions. A lower total may cover a smaller surface, fewer accounts, automated scanning only, or no verification after fixes.

Request change-control terms. If an extra API or role is discovered, who decides whether to extend the scope? If remediation is requested, is it a separate engineering engagement? Clear answers reduce the risk of comparing unlike services or assuming that a review includes implementation.

References: [1] NIST

How Cyphen approaches pricing

For Cyphen’s application security work, book a call to discuss the product, concerns, and available access. We agree on scope, deliverables, pricing, and authorization before audit work begins. Remediation and broader assessments can be scoped separately. This page does not set a universal fee because application requirements differ.

Bring an existing AI or scanner report if available. It can help identify questions for validation, but a report’s issue count does not establish review effort by itself. Duplicate alerts, uncertain impact, and missing runtime context often need examination before a useful scope can be proposed.

References: [4] GitHub, [3] OWASP

Your next steps

  1. Prepare the application and workflow inventory, including roles and integrations.
  2. State the decision deadline and required outputs, including any retest expectations.
  3. Request an itemized scope with exclusions and change-control terms.
  4. Book a call with Anish to discuss a quote for your application.

Questions teams ask

Is there a fixed price for every security audit?

A fixed fee can be agreed for a defined scope. A universal price would hide differences in application complexity, access, review depth, and required outputs.

Are fixes included in the audit cost?

Only if the proposal explicitly includes implementation. Cyphen scopes remediation or wider assessment work separately from the initial agreed review.

Sources and editorial notes

Public-source facts are cited above. The review questions and action plans are Cyphen’s guidance for applying those lessons to your own systems. Sources checked on .

  1. NIST: Technical Guide to Information Security Testing and Assessment
  2. OWASP: Threat Modeling Cheat Sheet
  3. OWASP: Application Security Verification Standard
  4. GitHub: Limitations of Copilot Agents and code review