01 · Baseline
Reproducible build and tests
Record the commit, environment, commands, existing test results, and blockers. A failing or incomplete baseline stays visible in the report.
§ Codebase Security Review and Remediation · scope · findings · verification
Review the code risks. Verify the agreed fixes.
Codebase Security Review and Remediation validates code risks in an agreed scope. Implementation of selected fixes is separately scoped.
Who this fits
Your product grew fast. Now the next release needs clear evidence.
Start here if you lead engineering or security at a fintech or financial-software business and own, or have permission to review and change, the code in scope. The work fits lean small and mid-market teams facing fragile tests, duplicated logic, uncertain access checks, dependency findings, or unclear module ownership after rapid development. AI-assisted development can be a trigger; rapid human-written development can create the same review need.
Healthcare and digital-health software teams with owned code can discuss fit as a secondary route. If your organization mainly consumes vendor software, the vendor security review or Secure SDLC & AppSec Program Review may be a better starting point.
Stage 1 · assessment
Agree the boundary. Validate the findings.
Before access, we confirm the repositories, components, languages, frameworks, environments, data boundaries, review permissions, and exclusions. Supported technology, delivery capacity, fees, and timing are confirmed during scoping. The assessment produces findings and an implementation proposal; it does not include an automatic rewrite.
02 · Access and data
Authorization and data paths
Inspect agreed authentication and authorization flows, trust boundaries, and sensitive-data handling. Validate a suspected exposure against the code and permitted test environment.
03 · Dependencies
Dependency evidence
Review the dependencies and relevant findings in scope, including affected versions, reachability, and available fixes. Scanner output is evidence to investigate, not a final risk verdict.
04 · Maintainability
Code sprawl and architecture
Identify duplication, dead paths, unclear boundaries, and fragile interfaces where they affect the agreed risk or delivery problem.
05 · Ownership
Tests and accountable owners
Map important behavior to its tests and module owners. Record where verification or responsibility is missing.
06 · Decision
Evidence-linked findings
Each validated finding records reproducible evidence, impact and likelihood, limitations, a proposed fix, a named owner, and acceptance criteria.
Stage 2 · separately scoped implementation
Fix what is agreed. Hand over the evidence.
Your team selects the findings to address. We agree the change set, review responsibilities, acceptance criteria, and release boundary in writing before implementation.
- Scoped fixes and refactoring: implement the selected security and maintainability changes, using existing project patterns where they fit.
- Meaningful regression tests: reproduce the relevant failure and verify the intended behavior, including permitted and denied paths where applicable.
- Verification record: retain the changed commit, commands, results, and remaining limitations against the agreed acceptance criteria.
- Engineering handover: deliver reviewable changes, updated architecture or runbook material, named ownership, and an open-risk register. Deployment is included only when expressly scoped.
Synthetic illustration · not client evidence
Finding → scoped fix → test evidence.
This hypothetical example shows the deliverable format. It contains no client data, reports no completed engagement, and makes no claim about a particular product.
Finding
A missing ownership check
In the fictional test environment, User A can request User B's document by changing its identifier. The finding would reference the route, commit, test setup, reproduction, and data-access impact. Severity would depend on the actual context.
Scoped fix
Enforce the existing access rule
The proposed change uses the application's existing authorization pattern for this route. Scope covers that path and its callers, with unrelated refactoring excluded. An owner reviews the change before release.
Test evidence
Verify denied and permitted access
The proposed regression test fails on the vulnerable baseline and passes after the fix. User A is denied User B's document; User B retains permitted access. The handover would include commands and results, with other routes explicitly outside this example.
Related methods and research
Use evidence to choose the review scope.
NIST's Secure Software Development Framework provides a vocabulary for secure development, vulnerability response, and root-cause work. DORA's research discusses verification overhead and delivery friction around AI-assisted development. Findings about your product come from reviewing its code and evidence within the agreed scope.
Common questions
Before we scope the work.
Is this the same as a Secure SDLC program review?
No. The Secure SDLC & AppSec Program Review examines client-provided process and pipeline evidence. This engagement reviews agreed code and can include separately scoped implementation.
Does this include LLM red teaming or penetration testing?
Those require their own scope. LLM security testing examines runtime attack behavior; penetration testing validates exploitability under written authorization. A repository review does not silently include either.
Which technologies and repository sizes can you review?
We confirm the stack, repository size, dependencies, access model, and available expertise before accepting the engagement. We agree a bounded component or repository scope and disclose any specialist delivery roles.
What will it cost, and are fixes included?
Fees and timing are quoted after scoping and confirmed in writing. Assessment and remediation are separate stages. The assessment identifies evidence and priorities; implementation proceeds only for the selected changes in an agreed scope.
Who owns delivery and the remaining risks?
DSE delivery leadership is accountable for scope, quality, and handover. Your organization names its code owner and release decision-maker. The final record identifies unresolved findings, exclusions, and ongoing owners.
Start with a bounded problem
Tell us which repository and release need attention.
Describe the stack, the code you own, the problem driving the review, and your timing. Do not submit credentials, sensitive code, or customer data through the intake form. We confirm fit and the permitted access path before review begins.
Scope a codebase review →This is a point-in-time review and, where separately agreed, implementation against a bounded scope. It is not a certification, audit, legal opinion, continuous monitoring service, or guarantee of security or compliance. Findings depend on the code, evidence, and environment reviewed. Your counsel and assessors retain their roles; your team retains risk acceptance and release authority.