Authorized testing · United States & Brazil
Web application penetration testing
An application can work exactly as designed and still let someone reach data or actions they should not have access to. I test the boundaries between a regular account, another person’s data, and administrative functions.
Discuss my projectBeyond the login screen
I examine registration, authentication, account recovery, and session termination. The question is whether a change in these workflows could let someone take over an account, keep access after it should end, or bypass a restriction.
Permissions enforced by the server
A hidden button is not an access boundary. Using accounts with different roles, I compare requests to check whether the server blocks restricted operations. This can include admin panels, files, exports, and settings within the agreed scope.
Findings your team can reproduce
For each confirmed issue, I document test conditions, reproduction steps, evidence, and impact. Remediation guidance addresses the underlying cause, with retesting agreed in the proposal. A test that finds no issue in one scenario is not a guarantee that the entire application is secure.
Illustrative scenario · fictional data
What this looks like in practice
Fictional example: a user without management permissions sends the request used to change another user’s role. Testing checks whether the server rejects the action, even though the account never sees that button in the interface.
What to prepare before testing
Prepare an environment URL, the main workflows, and test accounts for each role. We agree in writing on the systems to assess, timing, limits, and what to do if testing could affect availability.
Do not send passwords, tokens, or customer data through the public form.
Questions about this service
Do you need source-code access?
Not always. Application behavior can be assessed using test accounts. If code review would help, its access requirements and boundaries are agreed before testing.
Is an automated scan enough?
Tools help with coverage, but they do not always understand your business rules. Manual testing compares what a user should be able to do with what the server actually permits.
Let’s define the scope.
Tell me what your system does and what you need assessed. After reviewing the context, I send a proposal with boundaries, deliverables, timing, and price.
Discuss my project