We test connected flows, not isolated screens

A payment can start in a mobile app, pass through an API, trigger a partner callback, update a ledger, and appear in an admin tool. The security of that payment depends on every step. We map the full path, the roles that can use it, the states it can enter, and the controls that should hold at each boundary.

This approach exposes flaws that sit between systems. A valid user may reach another customer’s record. A signed request may be accepted twice. A support role may gain access meant for an administrator. A payment callback may update an order without checking the expected amount. These issues require hands-on testing and a clear view of how the product works.

Authentication and recovery

We test login, OTP use, password reset, device changes, session handling, account recovery, and every route that can return control of an account.

Payments and transaction logic

We test limits, fees, balances, callbacks, reversals, repeated requests, state changes, and the rules that decide whether money moves.

APIs and access control

We test object access, role boundaries, tenant isolation, partner tokens, rate limits, sensitive responses, and server-side enforcement.

Admin and support tools

We test privileged actions, customer lookups, overrides, exports, approval flows, staff roles, and the effect of a compromised staff account.

Every finding must earn its place in the report

We review test results before they reach your team. A confirmed finding states what we tested, the access used, what happened, why it matters, and what must change. If a result needs more evidence, it stays under review.

01

Reproduction steps

Your engineers can follow the same path and see the same result. Requests, responses, roles, states, and required conditions are recorded.

02

Business impact

The report connects the technical flaw to the product. It explains the access, data, transaction, customer, or operational risk created by the issue.

03

Fix guidance

The finding names the failed control and the change required. Guidance stays tied to the affected flow, architecture, and framework.

04

Retest record

We run the test again after your fix. The final status records whether the issue is fixed, partly fixed, or still open.

One report serves engineering and leadership

Engineers need the exact path, evidence, impact, and fix. Leaders need the systems tested, the main risks, the decisions required, and the state of remediation. We deliver both views without forcing either group to work through material written for the other.

Direct access keeps the work moving

Your technical contact speaks with the people testing the product. Questions about access, expected behavior, urgent findings, and fixes do not pass through a chain of account managers. When we confirm a critical issue, we tell your named contact at once. Your team can start the fix while the rest of the review continues.

The engagement starts with a written scope

Share the product surfaces, user roles, critical flows, current environment, target date, and the reason for the review. We turn that into a scope that names the systems, access, test limits, schedule, deliverables, and responsibilities. Work begins after both sides agree on those terms.

  1. Scope: We map the product, roles, trust boundaries, and highest-risk flows.
  2. Access: Your team provides the agreed builds, URLs, accounts, API notes, and contacts.
  3. Testing: We test each surface and follow connected flows across system boundaries.
  4. Reporting: Confirmed findings arrive with evidence, impact, priority, and fix guidance.
  5. Retesting: We test completed fixes and update the final status.

Good access creates a better test

The review needs accounts for every role in scope, a current build or staging URL, API notes, a short architecture map, and one technical contact. Payment tests need safe test funds or a sandbox that follows the same rules as production. Mobile tests need the same build customers will receive. Admin tests need the roles used by support, operations, and approval teams.

Tell us about known limits before testing starts. Rate limits, third-party costs, restricted production actions, maintenance windows, and data rules belong in the scope. This gives your team control of the environment and preserves the depth of the review.

Judge the work before you book

Review our sample report and engagement templates. Check the fields used for findings, the level of technical detail, the management summary, the data handling terms, and the retest record. Then send one critical product flow. We will explain the roles, states, integrations, and controls that belong in its scope.

Open our sample security report, our statement of work, our testing authorization, and our data handling note.

Tell us what the product handles and when you need the review.

Request a security review

Choose the review that matches your next decision

Use our pre-launch review when your critical flows are ready and customers have not arrived. Use our live-product review when the product already serves customers or has changed since its last test. You can also review our focused services for penetration testing, API security, mobile apps, and authentication.

Frequently asked questions

Who carries out the security review?

The people who scope the work also test the product and explain the findings. Your engineers can speak with them throughout the engagement.

What makes the review useful to an engineering team?

Each confirmed finding names the affected flow, required access, test steps, result, business impact, fix guidance, and retest status. Your team gets enough detail to reproduce the issue and repair it.

Does the report support a compliance review?

The report records scope, methods, findings, severity, impact, fixes, and retest status. Your auditor or regulator decides how that evidence fits the full review of governance, privacy, operations, and technical controls.

How long does a focused review take?

Most focused reviews take 10 to 25 working days. The final schedule depends on the apps, APIs, roles, integrations, and environments in scope.

Can Simpa Labs test a major release or a changed feature?

Yes. We can focus the scope on the changed surface and every control that depends on it. This works well for a new payment flow, authentication change, partner integration, admin tool, or mobile release.