Scope and fit
A mobile app is one part of a larger service. Testing only the installed binary can miss backend authorization, account recovery, and behavior created by platform integrations.
Inspect local data and device behavior
Review storage, key use, screenshots, backups, logs, clipboard, and deep-link handling on supported platforms. Test with realistic device states and permissions.
Follow requests to the backend
Trace authentication tokens, API calls, object identifiers, and error behavior. Confirm that the server enforces access even when a modified client changes requests.
Include update and dependency paths
Check how app versions, libraries, signing, and release approvals are managed. State supported operating systems and testing limitations clearly in the report.
Decisions and tradeoffs
Use this table as a working review record. Replace assumptions with evidence from the target environment.
| Decision area | Working guidance |
|---|---|
| Inspect local data and device behavior | Review storage, key use, screenshots, backups, logs, clipboard, and deep-link handling on supported platforms. Test with realistic device states and permissions. |
| Follow requests to the backend | Trace authentication tokens, API calls, object identifiers, and error behavior. Confirm that the server enforces access even when a modified client changes requests. |
| Include update and dependency paths | Check how app versions, libraries, signing, and release approvals are managed. State supported operating systems and testing limitations clearly in the report. |
Implementation questions
What should the team decide about inspect local data and device behavior?
Review storage, key use, screenshots, backups, logs, clipboard, and deep-link handling on supported platforms. Test with realistic device states and permissions. Use a named owner and a written acceptance check so this decision can be reviewed after deployment.
What should the team decide about follow requests to the backend?
Trace authentication tokens, API calls, object identifiers, and error behavior. Confirm that the server enforces access even when a modified client changes requests. Use a named owner and a written acceptance check so this decision can be reviewed after deployment.
What should the team decide about include update and dependency paths?
Check how app versions, libraries, signing, and release approvals are managed. State supported operating systems and testing limitations clearly in the report. Use a named owner and a written acceptance check so this decision can be reviewed after deployment.
Plan, build, verify, operate
Inspect local data and device behavior: Review storage, key use, screenshots, backups, logs, clipboard, and deep-link handling on supported platforms. Test with realistic device states and permissions. Record the result and the next owner before changing the next boundary.
Follow requests to the backend: Trace authentication tokens, API calls, object identifiers, and error behavior. Confirm that the server enforces access even when a modified client changes requests. Record the result and the next owner before changing the next boundary.
Include update and dependency paths: Check how app versions, libraries, signing, and release approvals are managed. State supported operating systems and testing limitations clearly in the report. Record the result and the next owner before changing the next boundary.
Deployment checks
Turn the page into a reviewable handover by assigning each check to a person and retaining its result.
Mobile App Security Testing Beyond the Client Binary: decision 1
Write down the boundary, owner, dependency, and proof required for mobile app security testing beyond the client binary before implementation begins.
Mobile App Security Testing Beyond the Client Binary: decision 2
Write down the boundary, owner, dependency, and proof required for mobile app security testing beyond the client binary before implementation begins.
Mobile App Security Testing Beyond the Client Binary: decision 3
Write down the boundary, owner, dependency, and proof required for mobile app security testing beyond the client binary before implementation begins.
Handover and ownership
Before handover, name the system owner, support path, access boundary, backup or recovery responsibility, and the condition that pauses a change.
Keep a short record of what was tested, what remains outside scope, and when the review should happen again.
